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blue · cool

#45678d

a dark, soft blue · cool · closest name: Royal Blue

Token name suggestion: Shadow Sapphire

RGB
69, 103, 141
HSL
212°, 34%, 41%
CMYK
51, 27, 0, 45
Luminance
0.1289

#45678d is a dark soft blue, 212° on the wheel and 98/100 on the cool side. Put white text on it (5.87:1). As text it scores 5.87:1 on white — safe at any size. Nearest name is Royal Blue, nearest Tailwind family is slate.

hsl(212 34% 41%)rgb(69 103 141)Base step 700AA inkCool

At a glance

Every number on this page in one read: what #45678d is made of, how bright it looks, and which way it leans.

Hex
#45678d
Hue
212°
blue
Saturation
34%
soft
Lightness
41%
dark
Brightness
55%
HSV value
Perceived
39%
weighted brightness
Luminance
0.1289
WCAG relative
Temperature
Cool
98/100 cool
Color family
Blue
Tone
Soft
Best ink
White
5.87:1
Closest name
Royal Blue
ΔE2000 9.4
Chroma
24.7
LCH, 0–130ish
OKLCH L
0.504
perceptual lightness
Tailwind
slate
500 · ΔE 7.8
Web-safe
#336699
nearest of 216
Where it sits
Hue212° of 360°
Saturation34%
Lightness41%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #45678d.

Temperature
Warm ← → Cool98% 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
Red10%
Green75%
Blue15%

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

Every format

HEX#45678d
HEX (8-digit)#45678dff
RGBrgb(69, 103, 141)
RGBArgba(69, 103, 141, 1)
HSLhsl(212, 34%, 41%)
HSV / HSBhsv(212, 51%, 55%)
HWBhwb(212 27% 45%)
CMYKcmyk(51%, 27%, 0%, 45%)
LABlab(42.6 -1.0 -24.7)
LCHlch(42.6 24.7 267.8)
OKLCHoklch(0.504 0.073 252.0)
XYZ (D65)xyz(12.11, 12.89, 27.04)
Decimal4548493
Display P3color(display-p3 0.271 0.404 0.553)
Web-safe#336699

Copy-ready code

every platformclick to select
/* CSS */
color: #45678d;
background-color: #45678d;
/* CSS custom property */
--brand: #45678d;
/* Tailwind (arbitrary) */
class="text-[#45678d] bg-[#45678d]"
/* SCSS */
$brand: #45678d;
/* SwiftUI */
Color(red: 0.271, green: 0.404, blue: 0.553)
/* UIKit */
UIColor(red: 0.271, green: 0.404, blue: 0.553, alpha: 1)
/* Android XML */
<color name="brand">#45678D</color>
/* Android Compose */
Color(0xFF45678D)
/* Flutter */
Color(0xFF45678D)
/* Python / OpenCV (BGR) */
(141, 103, 69)
/* Python / PIL (RGB) */
(69, 103, 141)
/* Java AWT */
new Color(69, 103, 141)
/* .NET */
Color.FromArgb(255, 69, 103, 141)
/* OpenGL / Unity (0–1) */
(0.2706f, 0.4039f, 0.5529f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{69,103,141}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #45678d 85%, white);
border-color: color-mix(in oklab, #45678d 40%, transparent);
/* theme-aware in one line */
color: light-dark(#2A3F56, #D6E0EB);
/* relative colour syntax */
--hover: hsl(from #45678d 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: #F5F7F9;
  --brand-100: #ECEFF4;
  --brand-200: #D4DDE8;
  --brand-300: #B4C6DA;
  --brand-400: #8EA9C8;
  --brand-500: #688DB5;
  --brand-600: #5078A4;
  --brand-700: #45678d;
  --brand-800: #36506E;
  --brand-900: #2A3C51;
  --brand-950: #1A2632;
  --brand: #45678d;
  --brand-ink: #ffffff;
  --brand-surface: #F5F7FA;
  --brand-border: #C8D5E4;
  --brand-hover: #395675;
  --brand-pressed: #2E445D;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141C24;
    --brand-ink: #D6E0EB;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F7F9',
        100: '#ECEFF4',
        200: '#D4DDE8',
        300: '#B4C6DA',
        400: '#8EA9C8',
        500: '#688DB5',
        600: '#5078A4',
        700: '#45678d',
        800: '#36506E',
        900: '#2A3C51',
        950: '#1A2632',
        DEFAULT: '#45678d',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5F7F9,
  '100': #ECEFF4,
  '200': #D4DDE8,
  '300': #B4C6DA,
  '400': #8EA9C8,
  '500': #688DB5,
  '600': #5078A4,
  '700': #45678d,
  '800': #36506E,
  '900': #2A3C51,
  '950': #1A2632,
);
$brand-base: #45678d;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5F7F9", "$type": "color" },
      "100": { "$value": "#ECEFF4", "$type": "color" },
      "200": { "$value": "#D4DDE8", "$type": "color" },
      "300": { "$value": "#B4C6DA", "$type": "color" },
      "400": { "$value": "#8EA9C8", "$type": "color" },
      "500": { "$value": "#688DB5", "$type": "color" },
      "600": { "$value": "#5078A4", "$type": "color" },
      "700": { "$value": "#45678d", "$type": "color" },
      "800": { "$value": "#36506E", "$type": "color" },
      "900": { "$value": "#2A3C51", "$type": "color" },
      "950": { "$value": "#1A2632", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$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#ffffff on #45678d · 5.87:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 5.87:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.58:1
AA fail · AA large pass · AAA fail
Reading the other direction: #45678d as text scores 5.87:1 on white and 3.58:1 on black.
Best tinted ink on it, if plain black or white feels flat: #EEF2F7 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
#45678d · 5.87:1
AA on whitealready passes
#45678d
The quick fox
#3D5B7C · 7.03:1
AAA on white−5% L
#3D5B7C
The quick fox
#5179A5 · 4.63:1
AA on black+7% L
#5179A5
The quick fox
#7798BC · 7.00:1
AAA on black+19% L
#7798BC

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #45678D 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
#45678d on white: 5.87:1
AA ✓ pass · AA-large · AAA
Aa
#45678d on black: 3.58:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #45678d as text on that neutral, and that neutral as text on #45678d.

NeutralRatioBoth directions
White5.87:1AaAa
Slate 505.61:1AaAa
Slate 1005.36:1AaAa
Slate 2004.76:1AaAa
Slate 3003.95:1AaAa
Slate 4002.29:1AaAa
Slate 5001.23:1AaAa
Slate 6001.29:1AaAa
Slate 7001.76:1AaAa
Slate 8002.49:1AaAa
Slate 9003.04:1AaAa
Black3.58:1AaAa
Colour vision deficiency
true color
protanopia · #58698F
deuteranopia · #4F618C
tritanopia · #237074

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. #45678d is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5F7F9
#ECEFF4
#D4DDE8
#B4C6DA
#8EA9C8
#688DB5
#5078A4
#45678d
#36506E
#2A3C51
#1A2632
Base = 700Lightest = 50 · #F5F7F9Darkest = 950 · #1A2632Text 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 0.018 252.0);
  --brand-100: oklch(0.94 0.029 252.0);
  --brand-200: oklch(0.88 0.044 252.0);
  --brand-300: oklch(0.80 0.057 252.0);
  --brand-400: oklch(0.72 0.067 252.0);
  --brand-500: oklch(0.64 0.073 252.0);
  --brand-600: oklch(0.56 0.073 252.0);
  --brand-700: oklch(0.48 0.068 252.0);
  --brand-800: oklch(0.40 0.061 252.0);
  --brand-900: oklch(0.32 0.051 252.0);
  --brand-950: oklch(0.24 0.040 252.0);
}

Colors that work with #45678d

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

Text on it#ffffff
White wins here
Surface#F5F7FA
Tinted page background
Border#C8D5E4
Hairlines and dividers
Muted text#4B719A
Captions on the surface
Accent#915741
Second voice, not a rival
Dark variant#2A3F56
Hover, pressed, headers
Light variant#EEF2F7
Selected rows, tints
Dark surface#141C24
Dark-mode background
Hover#395675
One step down in lightness
Pressed#2E445D
Two steps down
Disabled#8DA0B6
Chroma pulled out
Focus ring#4070A6
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 #45678d

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

Works well for
  • Body text and links on white
  • Charts, tags and secondary surfaces
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Black text placed on it
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Any size
Safe as a fill behind white type
Yes
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 low lightness adds weight and formality.

Worth knowing

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

Reads as
  • FormalityHigh
  • EnergyMedium
  • Weight59/100
  • 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#8D6B45
Analogous left#458B8D
Analogous right#47458D
Split-complement 1#8D4745
Split-complement 2#8B8D45
Triadic 1#8D4567
Triadic 2#678D45
Tetradic#8D458B
On the wheel
Base+30°−30°+120°+240°+180°212°

#45678d sits at 212°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red27.1%
Green40.4%
Blue55.3%
R · 0–255
69
0x45
G · 0–255
103
0x67
B · 0–255
141
0x8d

CMYK percentages

Cyan51.1%
Magenta27.0%
Yellow0.0%
Key (black)44.7%

Total ink coverage is 123%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#45678d text on a black background

contrast 3.58:1

Card sample

#45678d text on a white background

contrast 5.87:1

Card sample

#45678d on grey

5.36:1

#45678d on its own surface

5.47:1

#45678d on its dark surface

2.93:1

CSS3 live lab

Text font color

The quick brown fox

color: #45678d;
Background color
Panel with #45678d background
background-color: #45678d;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #45678d;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(69, 103, 141, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(69, 103, 141, 0.45);
Border & gradient
Gradient panel
border: 3px solid #45678d;
background: linear-gradient(135deg, #45678d, #53458D);
Gradient text

Gradient headline

background: linear-gradient(90deg, #45678d, #65458D);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #45678d;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #45678d;
caret-color: #45678d;
Left rule
Pull quote or callout
border-left: 4px solid #45678d;
Ring + tint
Selected chip
background: #EEF2F7;
box-shadow: inset 0 0 0 2px #45678d;
Conic badge
68%
background: conic-gradient(#45678d 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #45678d 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(69, 103, 141, 0.5)
rgb(69 103 141 / 50%)
#45678d80
hsl(212 34% 41% / 50%)
color-mix(in srgb, #45678d 50%, transparent)
Alpha8-digit hexFlat on white
10%#45678d1a#ECF0F4
20%#45678d33#DAE1E8
40%#45678d66#B5C2D1
60%#45678d99#8FA4BB
80%#45678dcc#6A85A4

Gradients from #45678d

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, #5F85B1, #45678d 45%, #2A3F56);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #45678d, #4C3B79);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #45678d, #8D6B45);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #7395BB 0%, #45678d 45%, #2A3F56 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F5F7FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #58ADA9 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #584FA2 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #2A3F56 0%, transparent 65%), #45678d;

Monochromatic scale

Palettes built from #45678d

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.

#45678d 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

Too dim on dark surfaces at 3.58:1 — lift it to #5179A5 for body text, or reserve it for fills.

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.

#45678d, answered

What color is #45678d?

#45678d is a dark soft blue, closest to Royal Blue (ΔE2000 9.4). It sits at 212° on the hue wheel with 34% saturation and 41% lightness, which reads as cool.

What is the RGB value of #45678d?

rgb(69, 103, 141) — 69 red, 103 green and 141 blue out of 255, or 27.1% / 40.4% / 55.3% by channel.

What is #45678d in HSL and HSV?

hsl(212, 34%, 41%) and hsv(212, 51%, 55%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #45678d a light or a dark color?

It is a dark color. Relative luminance is 0.1289 and perceived brightness is 39%, so white text on it reaches 5.87:1.

Should I use black or white text on #45678d?

White. It scores 5.87:1 against #45678d, versus 3.58:1 for black — AA at any size.

Is #45678d accessible on a white background?

#45678d on white scores 5.87:1, which clears AA at every size but not AAA.

What is the complementary color of #45678d?

#8D6B45 sits directly opposite on the wheel. Softer options are the split-complements #8D4745 and #8B8D45, which give the same contrast with far less vibration.

What colors go well with #45678d?

For interface work: #F5F7FA as the surface, #C8D5E4 for borders, #4B719A for secondary text, #915741 as an accent and #2A3F56 for hover and pressed states. For a palette, the analogous pair #458B8D and #47458D stays calm, while #8D6B45 is the loudest partner.

What is #45678d in CMYK for printing?

cmyk(51%, 27%, 0%, 45%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #45678d warm or cool?

Cool — it scores 98 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #454D8D; nudged cooler, #3B5A7E.

Which Tailwind color is closest to #45678d?

The slate family — its 500 step is #64748b, ΔE2000 7.8 away. That is a visible difference, so define #45678d as a custom token rather than reaching for the built-in.

How do I use #45678d in Tailwind CSS?

Inline it as an arbitrary value with bg-[#45678d] or text-[#45678d], 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 #45678d with 50% opacity?

rgba(69, 103, 141, 0.5), or #45678d80 in eight-digit hex. Over white that composites to #A2B3C6; over black, #233447.

Is #45678d a web-safe color?

No. The nearest web-safe colour is #336699, ΔE2000 3.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #45678d 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 #45678d?

The safest is same-hue elevation: linear-gradient(135deg, #5F85B1, #45678d 45%, #2A3F56). For more colour, a short hue run to #4C3B79 keeps it rich without turning muddy.

Work with #45678d in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #45678d at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.