#181B69#181B69

#181B69 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.3% C 0.132 H 272.5°. Best body text is #FFFFFF at 15.00:1 contrast (WCAG AA passes).

Color values

HEX	#181B69
RGB	rgb(24, 27, 105)
HSL	hsl(238, 63%, 25%)
HSV	hsv(238, 77%, 41%)
CMYK	cmyk(77.1%, 74.3%, 0%, 58.8%)
CIE-LAB	lab(15.47, 27.74, -45.64)
CIE-LCH	lch(15.47, 53.41, 301.29°)
OKLab	oklab(28.29% 0.0058 -0.132)
OKLCH	oklch(28.29% 0.132 272.5)
XYZ	xyz(3.3176, 1.9976, 13.5726)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181B69 #696618

analogous

#184369 #181B69 #3D1869

triadic

#181B69 #69181B #1B6918

tetradic

#181B69 #691843 #696618 #18693D

square

#181B69 #691843 #696618 #18693D

split-complementary

#181B69 #693D18 #436918

monochromatic

#060619 #0D0E37 #181B69 #23289B #2F35CD

Accessibility & contrast

On white

15.00

#181B69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#181B69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181B69

15.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181B69	#FFFFFF	#000000	##FFFFFF
##181B69	1.00	15.00	1.40	15.00
#FFFFFF	15.00	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6B

Deuteranopia (green-blind)

#002368

Tritanopia (blue-blind)

#003140

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181b69;
/* rgb */ color: rgb(24, 27, 105);
/* oklch */ color: oklch(28.3% 0.132 272.5);

Tailwind

colors: {
  custom: {
    50: '#635895',
    500: '#181b69',
    950: '#000000',
  },
}

SCSS

$custom: #181b69;
$custom-light: #635895;
$custom-dark: #000000;

JSON

{
  "hex": "#181b69",
  "rgb": {
    "r": 24,
    "g": 27,
    "b": 105
  },
  "hsl": {
    "h": 237.778,
    "s": 62.791,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28288,
    "c": 0.13216,
    "h": 272.5
  },
  "luminance": 0.01998
}

Semantic roles & 50–950 ramp

primary

#181B69

secondary

#9F9B3E

accent

#E042E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181B69

Body copy rendered with the generated semantic roles for this colour.

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