#181F69#181F69

#181F69 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.0% C 0.127 H 271.4°. Best body text is #FFFFFF at 14.60:1 contrast (WCAG AA passes).

Color values

HEX	#181F69
RGB	rgb(24, 31, 105)
HSL	hsl(235, 63%, 25%)
HSV	hsv(235, 77%, 41%)
CMYK	cmyk(77.1%, 70.5%, 0%, 58.8%)
CIE-LAB	lab(16.47, 25.03, -44.00)
CIE-LCH	lch(16.47, 50.62, 299.63°)
OKLab	oklab(29.01% 0.0032 -0.1272)
OKLCH	oklch(29.01% 0.127 271.4)
XYZ	xyz(3.4156, 2.1937, 13.6053)
Luminance	0.0219 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F69 #696218

analogous

#184769 #181F69 #391869

triadic

#181F69 #69181F #1F6918

tetradic

#181F69 #691847 #696218 #186939

square

#181F69 #691847 #696218 #186939

split-complementary

#181F69 #693918 #476918

monochromatic

#060719 #0D1037 #181F69 #232E9B #2F3CCD

Accessibility & contrast

On white

14.60

#181F69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#181F69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F69

14.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F69	#FFFFFF	#000000	##FFFFFF
##181F69	1.00	14.60	1.44	14.60
#FFFFFF	14.60	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6B

Deuteranopia (green-blind)

#002568

Tritanopia (blue-blind)

#003341

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #181f69;
/* rgb */ color: rgb(24, 31, 105);
/* oklch */ color: oklch(29.0% 0.127 271.4);

Tailwind

colors: {
  custom: {
    50: '#635a95',
    500: '#181f69',
    950: '#000000',
  },
}

SCSS

$custom: #181f69;
$custom-light: #635a95;
$custom-dark: #000000;

JSON

{
  "hex": "#181f69",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 105
  },
  "hsl": {
    "h": 234.815,
    "s": 62.791,
    "l": 25.294
  },
  "oklch": {
    "l": 0.2901,
    "c": 0.12727,
    "h": 271.4
  },
  "luminance": 0.02194
}

Semantic roles & 50–950 ramp

primary

#181F69

secondary

#9F973E

accent

#D842E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #181F69

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

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