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blue · cool

#918be9

a light, vivid blue · cool · closest name: Medium Purple

Token name suggestion: Linen Sapphire

RGB
145, 139, 233
HSL
244°, 68%, 73%
CMYK
38, 40, 0, 9
Luminance
0.3037

#918be9 is a light vivid blue, 244° on the wheel and 81/100 on the cool side. Put black text on it (7.07:1). As text it scores 2.97:1 on white — use #6C64E2 instead. Nearest name is Medium Purple, nearest Tailwind family is indigo.

hsl(244 68% 73%)rgb(145 139 233)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #918be9 is made of, how bright it looks, and which way it leans.

Hex
#918be9
Hue
244°
blue
Saturation
68%
vivid
Lightness
73%
light
Brightness
91%
HSV value
Perceived
61%
weighted brightness
Luminance
0.3037
WCAG relative
Temperature
Cool
81/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
7.07:1
Closest name
Medium Purple
ΔE2000 8.6
Chroma
52.8
LCH, 0–130ish
OKLCH L
0.682
perceptual lightness
Tailwind
indigo
500 · ΔE 12.9
Web-safe
#9999FF
nearest of 216
Where it sits
Hue244° of 360°
Saturation68%
Lightness73%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #918be9.

Temperature
Warm ← → Cool81% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red20%
Green61%
Blue19%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#918be9
HEX (8-digit)#918be9ff
RGBrgb(145, 139, 233)
RGBArgba(145, 139, 233, 1)
HSLhsl(244, 68%, 73%)
HSV / HSBhsv(244, 40%, 91%)
HWBhwb(244 55% 9%)
CMYKcmyk(38%, 40%, 0%, 9%)
LABlab(62.0 24.4 -46.8)
LCHlch(62.0 52.8 297.5)
OKLCHoklch(0.682 0.136 285.1)
XYZ (D65)xyz(35.61, 30.37, 81.06)
Decimal9538537
Display P3color(display-p3 0.569 0.545 0.914)
Web-safe#9999FF

Copy-ready code

every platformclick to select
/* CSS */
color: #918be9;
background-color: #918be9;
/* CSS custom property */
--brand: #918be9;
/* Tailwind (arbitrary) */
class="text-[#918be9] bg-[#918be9]"
/* SCSS */
$brand: #918be9;
/* SwiftUI */
Color(red: 0.569, green: 0.545, blue: 0.914)
/* UIKit */
UIColor(red: 0.569, green: 0.545, blue: 0.914, alpha: 1)
/* Android XML */
<color name="brand">#918BE9</color>
/* Android Compose */
Color(0xFF918BE9)
/* Flutter */
Color(0xFF918BE9)
/* Python / OpenCV (BGR) */
(233, 139, 145)
/* Python / PIL (RGB) */
(145, 139, 233)
/* Java AWT */
new Color(145, 139, 233)
/* .NET */
Color.FromArgb(255, 145, 139, 233)
/* OpenGL / Unity (0–1) */
(0.5686f, 0.5451f, 0.9137f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{145,139,233}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #918be9 85%, white);
border-color: color-mix(in oklab, #918be9 40%, transparent);
/* theme-aware in one line */
color: light-dark(#1A146B, #D4D3EE);
/* relative colour syntax */
--hover: hsl(from #918be9 h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F4F3FB;
  --brand-100: #E9E8F8;
  --brand-200: #CDCAF2;
  --brand-300: #918be9;
  --brand-400: #7972E4;
  --brand-500: #4C42DB;
  --brand-600: #3227CE;
  --brand-700: #2921AB;
  --brand-800: #211A89;
  --brand-900: #1C1764;
  --brand-950: #110E3E;
  --brand: #918be9;
  --brand-ink: #000000;
  --brand-surface: #F5F4FA;
  --brand-border: #C3C0ED;
  --brand-hover: #746DE3;
  --brand-pressed: #584FDE;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #151424;
    --brand-ink: #D4D3EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F4F3FB',
        100: '#E9E8F8',
        200: '#CDCAF2',
        300: '#918be9',
        400: '#7972E4',
        500: '#4C42DB',
        600: '#3227CE',
        700: '#2921AB',
        800: '#211A89',
        900: '#1C1764',
        950: '#110E3E',
        DEFAULT: '#918be9',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F4F3FB,
  '100': #E9E8F8,
  '200': #CDCAF2,
  '300': #918be9,
  '400': #7972E4,
  '500': #4C42DB,
  '600': #3227CE,
  '700': #2921AB,
  '800': #211A89,
  '900': #1C1764,
  '950': #110E3E,
);
$brand-base: #918be9;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F4F3FB", "$type": "color" },
      "100": { "$value": "#E9E8F8", "$type": "color" },
      "200": { "$value": "#CDCAF2", "$type": "color" },
      "300": { "$value": "#918be9", "$type": "color" },
      "400": { "$value": "#7972E4", "$type": "color" },
      "500": { "$value": "#4C42DB", "$type": "color" },
      "600": { "$value": "#3227CE", "$type": "color" },
      "700": { "$value": "#2921AB", "$type": "color" },
      "800": { "$value": "#211A89", "$type": "color" },
      "900": { "$value": "#1C1764", "$type": "color" },
      "950": { "$value": "#110E3E", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #918be9 · 7.07:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.97:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.07:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #918be9 as text scores 2.97:1 on white and 7.07:1 on black.
Best tinted ink on it, if plain black or white feels flat: #1A146B at 5.22:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#6C64E2 · 4.61:1
AA on white−9% L
#6C64E2
The quick fox
#483EDA · 7.05:1
AAA on white−18% L
#483EDA
The quick fox
#918be9 · 7.07:1
AA on blackalready passes
#918be9
The quick fox
#918be9 · 7.07:1
AAA on blackalready passes
#918be9

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #8D87E8 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#918be9 on white: 2.97:1
AA ✗ fail · AA-large · AAA
Aa
#918be9 on black: 7.07:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #918be9 as text on that neutral, and that neutral as text on #918be9.

NeutralRatioBoth directions
White2.97:1AaAa
Slate 502.84:1AaAa
Slate 1002.71:1AaAa
Slate 2002.41:1AaAa
Slate 3002.00:1AaAa
Slate 4001.16:1AaAa
Slate 5001.60:1AaAa
Slate 6002.55:1AaAa
Slate 7003.49:1AaAa
Slate 8004.93:1AaAa
Slate 9006.01:1AaAa
Black7.07:1AaAa
Colour vision deficiency
true color
protanopia · #6B99ED
deuteranopia · #6993E7
tritanopia · #799DAF

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #918be9 is pinned to step 300; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F4F3FB
#E9E8F8
#CDCAF2
#918be9
#7972E4
#4C42DB
#3227CE
#2921AB
#211A89
#1C1764
#110E3E
Base = 300Lightest = 50 · #F4F3FBDarkest = 950 · #110E3EText step on white = 500
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.034 285.1);
  --brand-100: oklch(0.94 0.055 285.1);
  --brand-200: oklch(0.88 0.082 285.1);
  --brand-300: oklch(0.80 0.106 285.1);
  --brand-400: oklch(0.72 0.125 285.1);
  --brand-500: oklch(0.64 0.136 285.1);
  --brand-600: oklch(0.56 0.136 285.1);
  --brand-700: oklch(0.48 0.128 285.1);
  --brand-800: oklch(0.40 0.115 285.1);
  --brand-900: oklch(0.32 0.095 285.1);
  --brand-950: oklch(0.24 0.075 285.1);
}

Colors that work with #918be9

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F5F4FA
Tinted page background
Border#C3C0ED
Hairlines and dividers
Muted text#504B9B
Captions on the surface
Accent#B0941C
Second voice, not a rival
Dark variant#1A146B
Hover, pressed, headers
Light variant#EBEAFB
Selected rows, tints
Dark surface#151424
Dark-mode background
Hover#746DE3
One step down in lightness
Pressed#584FDE
Two steps down
Disabled#EFEFF5
Chroma pulled out
Focus ring#9C96F2
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #918be9

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • White text placed on it
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #1A146B
Safe as a 1px border on white
No — use #8D87E8

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. The lightness keeps it airy and approachable.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityMedium
  • EnergyMedium-high
  • Weight27/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#E3E98B
Analogous left#8BB4E9
Analogous right#C08BE9
Split-complement 1#E9C08B
Split-complement 2#B4E98B
Triadic 1#E9918B
Triadic 2#8BE991
Tetradic#E98BB4
On the wheel
Base+30°−30°+120°+240°+180°244°

#918be9 sits at 244°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red56.9%
Green54.5%
Blue91.4%
R · 0–255
145
0x91
G · 0–255
139
0x8b
B · 0–255
233
0xe9

CMYK percentages

Cyan37.8%
Magenta40.3%
Yellow0.0%
Key (black)8.6%

Total ink coverage is 87%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#918be9 text on a black background

contrast 7.07:1

Card sample

#918be9 text on a white background

contrast 2.97:1

Card sample

#918be9 on grey

2.71:1

#918be9 on its own surface

2.71:1

#918be9 on its dark surface

6.11:1

CSS3 live lab

Text font color

The quick brown fox

color: #918be9;
Background color
Panel with #918be9 background
background-color: #918be9;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #918be9;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(145, 139, 233, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(145, 139, 233, 0.45);
Border & gradient
Gradient panel
border: 3px solid #918be9;
background: linear-gradient(135deg, #918be9, #D08BE9);
Gradient text

Gradient headline

background: linear-gradient(90deg, #918be9, #E78BE9);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #918be9;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #918be9;
caret-color: #918be9;
Left rule
Pull quote or callout
border-left: 4px solid #918be9;
Ring + tint
Selected chip
background: #EBEAFB;
box-shadow: inset 0 0 0 2px #918be9;
Conic badge
68%
background: conic-gradient(#918be9 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #918be9 over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(145, 139, 233, 0.5)
rgb(145 139 233 / 50%)
#918be980
hsl(244 68% 73% / 50%)
color-mix(in srgb, #918be9 50%, transparent)
Alpha8-digit hexFlat on white
10%#918be91a#F4F3FD
20%#918be933#E9E8FB
40%#918be966#D3D1F6
60%#918be999#BDB9F2
80%#918be9cc#A7A2ED

Gradients from #918be9

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #C2BEF3, #918be9 45%, #1A146B);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #918be9, #CF71E4);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #918be9, #E3E98B);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #DAD8F8 0%, #918be9 45%, #1A146B 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F5F4FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #B6D5F1 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #D4A5EE 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #1A146B 0%, transparent 65%), #918be9;

Monochromatic scale

Palettes built from #918be9

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#918be9 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Converts to four-color process without much drama. Proof it anyway.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 7.07:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#918be9, answered

What color is #918be9?

#918be9 is a light vivid blue, closest to Medium Purple (ΔE2000 8.6). It sits at 244° on the hue wheel with 68% saturation and 73% lightness, which reads as cool.

What is the RGB value of #918be9?

rgb(145, 139, 233) — 145 red, 139 green and 233 blue out of 255, or 56.9% / 54.5% / 91.4% by channel.

What is #918be9 in HSL and HSV?

hsl(244, 68%, 73%) and hsv(244, 40%, 91%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #918be9 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3037 and perceived brightness is 61%, so black text on it reaches 7.07:1.

Should I use black or white text on #918be9?

Black. It scores 7.07:1 against #918be9, versus 2.97:1 for white — AAA at any size.

Is #918be9 accessible on a white background?

#918be9 on white scores 2.97:1, which fails WCAG AA at every size. Darken it to #6C64E2 to reach 4.5:1, or #483EDA for 7:1.

What is the complementary color of #918be9?

#E3E98B sits directly opposite on the wheel. Softer options are the split-complements #E9C08B and #B4E98B, which give the same contrast with far less vibration.

What colors go well with #918be9?

For interface work: #F5F4FA as the surface, #C3C0ED for borders, #504B9B for secondary text, #B0941C as an accent and #1A146B for hover and pressed states. For a palette, the analogous pair #8BB4E9 and #C08BE9 stays calm, while #E3E98B is the loudest partner.

What is #918be9 in CMYK for printing?

cmyk(38%, 40%, 0%, 9%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #918be9 warm or cool?

Cool — it scores 81 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #B38BE9; nudged cooler, #89A7EA.

Which Tailwind color is closest to #918be9?

The indigo family — its 500 step is #6366f1, ΔE2000 12.9 away. That is a visible difference, so define #918be9 as a custom token rather than reaching for the built-in.

How do I use #918be9 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#918be9] or text-[#918be9], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #918be9 with 50% opacity?

rgba(145, 139, 233, 0.5), or #918be980 in eight-digit hex. Over white that composites to #C8C5F4; over black, #494675.

Is #918be9 a web-safe color?

No. The nearest web-safe colour is #9999FF, ΔE2000 4.7 away. The palette only matters for legacy displays and some email clients now.

What does the color #918be9 mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #918be9?

The safest is same-hue elevation: linear-gradient(135deg, #C2BEF3, #918be9 45%, #1A146B). For more colour, a short hue run to #CF71E4 keeps it rich without turning muddy.

Work with #918be9 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #918be9 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.