#181D61#181D61

#181D61 is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.8% C 0.118 H 272.6°. Best body text is #FFFFFF at 15.14:1 contrast (WCAG AA passes).

Color values

HEX	#181D61
RGB	rgb(24, 29, 97)
HSL	hsl(236, 60%, 24%)
HSV	hsv(236, 75%, 38%)
CMYK	cmyk(75.3%, 70.1%, 0%, 62%)
CIE-LAB	lab(15.15, 23.29, -40.90)
CIE-LCH	lch(15.15, 47.07, 299.66°)
OKLab	oklab(27.8% 0.0054 -0.1182)
OKLCH	oklch(27.8% 0.118 272.6)
XYZ	xyz(2.9730, 1.9357, 11.5239)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D61 #615C18

analogous

#184161 #181D61 #371861

triadic

#181D61 #61181D #1D6118

tetradic

#181D61 #611841 #615C18 #186137

square

#181D61 #611841 #615C18 #186137

split-complementary

#181D61 #613718 #416118

monochromatic

#060719 #0C0E30 #181D61 #242C92 #303AC3

Accessibility & contrast

On white

15.14

#181D61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#181D61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D61

15.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D61	#FFFFFF	#000000	##FFFFFF
##181D61	1.00	15.14	1.39	15.14
#FFFFFF	15.14	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002963

Deuteranopia (green-blind)

#002360

Tritanopia (blue-blind)

#002F3C

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #181d61;
/* rgb */ color: rgb(24, 29, 97);
/* oklch */ color: oklch(27.8% 0.118 272.6);

Tailwind

colors: {
  custom: {
    50: '#61598f',
    500: '#181d61',
    950: '#000000',
  },
}

SCSS

$custom: #181d61;
$custom-light: #61598f;
$custom-dark: #000000;

JSON

{
  "hex": "#181d61",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 97
  },
  "hsl": {
    "h": 235.89,
    "s": 60.331,
    "l": 23.725
  },
  "oklch": {
    "l": 0.27797,
    "c": 0.1183,
    "h": 272.6
  },
  "luminance": 0.01936
}

Semantic roles & 50–950 ramp

primary

#181D61

secondary

#97913D

accent

#D944E3

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #181D61

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

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