#181B67#181B67

#181B67 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.1% C 0.129 H 272.7°. Best body text is #FFFFFF at 15.09:1 contrast (WCAG AA passes).

Color values

HEX	#181B67
RGB	rgb(24, 27, 103)
HSL	hsl(238, 62%, 25%)
HSV	hsv(238, 77%, 40%)
CMYK	cmyk(76.7%, 73.8%, 0%, 59.6%)
CIE-LAB	lab(15.26, 26.98, -44.68)
CIE-LCH	lch(15.26, 52.19, 301.12°)
OKLab	oklab(28.07% 0.0061 -0.1292)
OKLCH	oklch(28.07% 0.129 272.7)
XYZ	xyz(3.2160, 1.9570, 13.0376)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181B67 #676418

analogous

#184267 #181B67 #3D1867

triadic

#181B67 #67181B #1B6718

tetradic

#181B67 #671842 #676418 #18673D

square

#181B67 #671842 #676418 #18673D

split-complementary

#181B67 #673D18 #426718

monochromatic

#060719 #0C0E35 #181B67 #242899 #2F35CA

Accessibility & contrast

On white

15.09

#181B67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#181B67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181B67

15.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181B67	#FFFFFF	#000000	##FFFFFF
##181B67	1.00	15.09	1.39	15.09
#FFFFFF	15.09	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A69

Deuteranopia (green-blind)

#002266

Tritanopia (blue-blind)

#00303E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #181b67;
/* rgb */ color: rgb(24, 27, 103);
/* oklch */ color: oklch(28.1% 0.129 272.7);

Tailwind

colors: {
  custom: {
    50: '#635893',
    500: '#181b67',
    950: '#000000',
  },
}

SCSS

$custom: #181b67;
$custom-light: #635893;
$custom-dark: #000000;

JSON

{
  "hex": "#181b67",
  "rgb": {
    "r": 24,
    "g": 27,
    "b": 103
  },
  "hsl": {
    "h": 237.722,
    "s": 62.205,
    "l": 24.902
  },
  "oklch": {
    "l": 0.28069,
    "c": 0.12937,
    "h": 272.7
  },
  "luminance": 0.01957
}

Semantic roles & 50–950 ramp

primary

#181B67

secondary

#9D993E

accent

#DF43E5

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181B67

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

Preview Lab → · Contrast checker → · Palette generator →