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blue · cool

#868dbb

a balanced, soft blue · cool · closest name: Light Slate Gray

Token name suggestion: Atlas Cobalt

RGB
134, 141, 187
HSL
232°, 28%, 63%
CMYK
28, 25, 0, 27
Luminance
0.2771

#868dbb is a balanced soft blue, 232° on the wheel and 80/100 on the cool side. Put black text on it (6.54:1). As text it scores 3.21:1 on white — large text only. Nearest name is Light Slate Gray, nearest Tailwind family is slate.

hsl(232 28% 63%)rgb(134 141 187)Base step 400AA inkCool

At a glance

Every number on this page in one read: what #868dbb is made of, how bright it looks, and which way it leans.

Hex
#868dbb
Hue
232°
blue
Saturation
28%
soft
Lightness
63%
balanced
Brightness
73%
HSV value
Perceived
57%
weighted brightness
Luminance
0.2771
WCAG relative
Temperature
Cool
80/100 cool
Color family
Blue
Tone
Soft
Best ink
Black
6.54:1
Closest name
Light Slate Gray
ΔE2000 11.2
Chroma
26.1
LCH, 0–130ish
OKLCH L
0.655
perceptual lightness
Tailwind
slate
500 · ΔE 13.2
Web-safe
#9999CC
nearest of 216
Where it sits
Hue232° of 360°
Saturation28%
Lightness63%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #868dbb.

Temperature
Warm ← → Cool80% 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
Red18%
Green69%
Blue13%

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

Every format

HEX#868dbb
HEX (8-digit)#868dbbff
RGBrgb(134, 141, 187)
RGBArgba(134, 141, 187, 1)
HSLhsl(232, 28%, 63%)
HSV / HSBhsv(232, 28%, 73%)
HWBhwb(232 53% 27%)
CMYKcmyk(28%, 25%, 0%, 27%)
LABlab(59.6 8.0 -24.8)
LCHlch(59.6 26.1 287.9)
OKLCHoklch(0.655 0.069 277.6)
XYZ (D65)xyz(28.32, 27.71, 50.86)
Decimal8818107
Display P3color(display-p3 0.525 0.553 0.733)
Web-safe#9999CC

Copy-ready code

every platformclick to select
/* CSS */
color: #868dbb;
background-color: #868dbb;
/* CSS custom property */
--brand: #868dbb;
/* Tailwind (arbitrary) */
class="text-[#868dbb] bg-[#868dbb]"
/* SCSS */
$brand: #868dbb;
/* SwiftUI */
Color(red: 0.525, green: 0.553, blue: 0.733)
/* UIKit */
UIColor(red: 0.525, green: 0.553, blue: 0.733, alpha: 1)
/* Android XML */
<color name="brand">#868DBB</color>
/* Android Compose */
Color(0xFF868DBB)
/* Flutter */
Color(0xFF868DBB)
/* Python / OpenCV (BGR) */
(187, 141, 134)
/* Python / PIL (RGB) */
(134, 141, 187)
/* Java AWT */
new Color(134, 141, 187)
/* .NET */
Color.FromArgb(255, 134, 141, 187)
/* OpenGL / Unity (0–1) */
(0.5255f, 0.5529f, 0.7333f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{134,141,187}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #868dbb 85%, white);
border-color: color-mix(in oklab, #868dbb 40%, transparent);
/* theme-aware in one line */
color: light-dark(#2E3352, #D8DAE9);
/* relative colour syntax */
--hover: hsl(from #868dbb 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: #F6F6F9;
  --brand-100: #ECEDF3;
  --brand-200: #D6D8E6;
  --brand-300: #B7BBD7;
  --brand-400: #868dbb;
  --brand-500: #6F78AE;
  --brand-600: #58619D;
  --brand-700: #495183;
  --brand-800: #3B4168;
  --brand-900: #2D324D;
  --brand-950: #1C1F30;
  --brand: #868dbb;
  --brand-ink: #000000;
  --brand-surface: #F5F6F9;
  --brand-border: #CBCEE2;
  --brand-hover: #6F77AE;
  --brand-pressed: #5A63A0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141624;
    --brand-ink: #D8DAE9;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6F6F9',
        100: '#ECEDF3',
        200: '#D6D8E6',
        300: '#B7BBD7',
        400: '#868dbb',
        500: '#6F78AE',
        600: '#58619D',
        700: '#495183',
        800: '#3B4168',
        900: '#2D324D',
        950: '#1C1F30',
        DEFAULT: '#868dbb',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6F6F9,
  '100': #ECEDF3,
  '200': #D6D8E6,
  '300': #B7BBD7,
  '400': #868dbb,
  '500': #6F78AE,
  '600': #58619D,
  '700': #495183,
  '800': #3B4168,
  '900': #2D324D,
  '950': #1C1F30,
);
$brand-base: #868dbb;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6F6F9", "$type": "color" },
      "100": { "$value": "#ECEDF3", "$type": "color" },
      "200": { "$value": "#D6D8E6", "$type": "color" },
      "300": { "$value": "#B7BBD7", "$type": "color" },
      "400": { "$value": "#868dbb", "$type": "color" },
      "500": { "$value": "#6F78AE", "$type": "color" },
      "600": { "$value": "#58619D", "$type": "color" },
      "700": { "$value": "#495183", "$type": "color" },
      "800": { "$value": "#3B4168", "$type": "color" },
      "900": { "$value": "#2D324D", "$type": "color" },
      "950": { "$value": "#1C1F30", "$type": "color" }
    },
    "brandInk": { "$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 #868dbb · 6.54:1
Use #000000AA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 3.21:1
AA fail · AA large pass · AAA fail
Aa
Black text · 6.54:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #868dbb as text scores 3.21:1 on white and 6.54:1 on black.
Best tinted ink on it, if plain black or white feels flat: #2E3352 at 3.82:1.

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
#6971AA · 4.62:1
AA on white−9% L
#6971AA
The quick fox
#4D5589 · 7.06:1
AAA on white−21% L
#4D5589
The quick fox
#868dbb · 6.54:1
AA on blackalready passes
#868dbb
The quick fox
#8C93BF · 7.04:1
AAA on black+2% L
#8C93BF

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #868DBB 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
#868dbb on white: 3.21:1
AA ✗ fail · AA-large · AAA
Aa
#868dbb on black: 6.54:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #868dbb as text on that neutral, and that neutral as text on #868dbb.

NeutralRatioBoth directions
White3.21:1AaAa
Slate 503.07:1AaAa
Slate 1002.93:1AaAa
Slate 2002.60:1AaAa
Slate 3002.16:1AaAa
Slate 4001.25:1AaAa
Slate 5001.48:1AaAa
Slate 6002.36:1AaAa
Slate 7003.23:1AaAa
Slate 8004.56:1AaAa
Slate 9005.56:1AaAa
Black6.54:1AaAa
Colour vision deficiency
true color
protanopia · #8092BD
deuteranopia · #7D8EBA
tritanopia · #79959D

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. #868dbb is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F6F6F9
#ECEDF3
#D6D8E6
#B7BBD7
#868dbb
#6F78AE
#58619D
#495183
#3B4168
#2D324D
#1C1F30
Base = 400Lightest = 50 · #F6F6F9Darkest = 950 · #1C1F30Text step on white = 600
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 0.017 277.6);
  --brand-100: oklch(0.94 0.028 277.6);
  --brand-200: oklch(0.88 0.041 277.6);
  --brand-300: oklch(0.80 0.054 277.6);
  --brand-400: oklch(0.72 0.063 277.6);
  --brand-500: oklch(0.64 0.069 277.6);
  --brand-600: oklch(0.56 0.069 277.6);
  --brand-700: oklch(0.48 0.065 277.6);
  --brand-800: oklch(0.40 0.058 277.6);
  --brand-900: oklch(0.32 0.048 277.6);
  --brand-950: oklch(0.24 0.038 277.6);
}

Colors that work with #868dbb

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#F5F6F9
Tinted page background
Border#CBCEE2
Hairlines and dividers
Muted text#535B93
Captions on the surface
Accent#876E45
Second voice, not a rival
Dark variant#2E3352
Hover, pressed, headers
Light variant#EFF0F6
Selected rows, tints
Dark surface#141624
Dark-mode background
Hover#6F77AE
One step down in lightness
Pressed#5A63A0
Two steps down
Disabled#D0D2E1
Chroma pulled out
Focus ring#8B93CB
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 #868dbb

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

Works well for
  • Headings from 24px up on white
  • Text and icons on dark surfaces
  • Charts, tags and secondary surfaces
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Small text on white — under 4.5:1
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
24px / 18.66px bold
Safe as a fill behind white type
No — use #2E3352
Safe as a 1px border on white
Yes

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.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. The mid lightness keeps it versatile in both themes.

Worth knowing

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

Reads as
  • FormalityMedium
  • EnergyMedium
  • Weight37/100
  • 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#BBB486
Analogous left#86A7BB
Analogous right#9986BB
Split-complement 1#BB9986
Split-complement 2#A7BB86
Triadic 1#BB868D
Triadic 2#8DBB86
Tetradic#BB86A7
On the wheel
Base+30°−30°+120°+240°+180°232°

#868dbb sits at 232°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red52.5%
Green55.3%
Blue73.3%
R · 0–255
134
0x86
G · 0–255
141
0x8d
B · 0–255
187
0xbb

CMYK percentages

Cyan28.3%
Magenta24.6%
Yellow0.0%
Key (black)26.7%

Total ink coverage is 80%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#868dbb text on a black background

contrast 6.54:1

Card sample

#868dbb text on a white background

contrast 3.21:1

Card sample

#868dbb on grey

2.93:1

#868dbb on its own surface

2.97:1

#868dbb on its dark surface

5.59:1

CSS3 live lab

Text font color

The quick brown fox

color: #868dbb;
Background color
Panel with #868dbb background
background-color: #868dbb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #868dbb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(134, 141, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(134, 141, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #868dbb;
background: linear-gradient(135deg, #868dbb, #A286BB);
Gradient text

Gradient headline

background: linear-gradient(90deg, #868dbb, #AF86BB);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #868dbb;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #868dbb;
caret-color: #868dbb;
Left rule
Pull quote or callout
border-left: 4px solid #868dbb;
Ring + tint
Selected chip
background: #EFF0F6;
box-shadow: inset 0 0 0 2px #868dbb;
Conic badge
68%
background: conic-gradient(#868dbb 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #868dbb 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(134, 141, 187, 0.5)
rgb(134 141 187 / 50%)
#868dbb80
hsl(232 28% 63% / 50%)
color-mix(in srgb, #868dbb 50%, transparent)
Alpha8-digit hexFlat on white
10%#868dbb1a#F3F4F8
20%#868dbb33#E7E8F1
40%#868dbb66#CFD1E4
60%#868dbb99#B6BBD6
80%#868dbbcc#9EA4C9

Gradients from #868dbb

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, #ADB2D1, #868dbb 45%, #2E3352);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #868dbb, #9872B0);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #868dbb, #BBB486);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #C1C4DC 0%, #868dbb 45%, #2E3352 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F5F6F9, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #A7C2CD 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #AE99C6 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #2E3352 0%, transparent 65%), #868dbb;

Monochromatic scale

Palettes built from #868dbb

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.

#868dbb 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
ButtonsLinksFocus statesCharts
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 6.54:1.

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.

#868dbb, answered

What color is #868dbb?

#868dbb is a balanced soft blue, closest to Light Slate Gray (ΔE2000 11.2). It sits at 232° on the hue wheel with 28% saturation and 63% lightness, which reads as cool.

What is the RGB value of #868dbb?

rgb(134, 141, 187) — 134 red, 141 green and 187 blue out of 255, or 52.5% / 55.3% / 73.3% by channel.

What is #868dbb in HSL and HSV?

hsl(232, 28%, 63%) and hsv(232, 28%, 73%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #868dbb a light or a dark color?

It is a mid-tone. Relative luminance is 0.2771 and perceived brightness is 57%, so black text on it reaches 6.54:1.

Should I use black or white text on #868dbb?

Black. It scores 6.54:1 against #868dbb, versus 3.21:1 for white — AA at any size.

Is #868dbb accessible on a white background?

#868dbb on white scores 3.21:1, which only clears AA for large text — 18.66px bold or 24px regular and up. Darken it to #6971AA to reach 4.5:1, or #4D5589 for 7:1.

What is the complementary color of #868dbb?

#BBB486 sits directly opposite on the wheel. Softer options are the split-complements #BB9986 and #A7BB86, which give the same contrast with far less vibration.

What colors go well with #868dbb?

For interface work: #F5F6F9 as the surface, #CBCEE2 for borders, #535B93 for secondary text, #876E45 as an accent and #2E3352 for hover and pressed states. For a palette, the analogous pair #86A7BB and #9986BB stays calm, while #BBB486 is the loudest partner.

What is #868dbb in CMYK for printing?

cmyk(28%, 25%, 0%, 27%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #868dbb warm or cool?

Cool — it scores 80 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #9286BB; nudged cooler, #849BBD.

Which Tailwind color is closest to #868dbb?

The slate family — its 500 step is #64748b, ΔE2000 13.2 away. That is a visible difference, so define #868dbb as a custom token rather than reaching for the built-in.

How do I use #868dbb in Tailwind CSS?

Inline it as an arbitrary value with bg-[#868dbb] or text-[#868dbb], 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 #868dbb with 50% opacity?

rgba(134, 141, 187, 0.5), or #868dbb80 in eight-digit hex. Over white that composites to #C3C6DD; over black, #43475E.

Is #868dbb a web-safe color?

No. The nearest web-safe colour is #9999CC, ΔE2000 4.9 away. The palette only matters for legacy displays and some email clients now.

What does the color #868dbb 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 moderate chroma the association is present but not shouted.

What gradient works with #868dbb?

The safest is same-hue elevation: linear-gradient(135deg, #ADB2D1, #868dbb 45%, #2E3352). For more colour, a short hue run to #9872B0 keeps it rich without turning muddy.

Work with #868dbb in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #868dbb at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.