#181F6E#181F6E

#181F6E is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.5% C 0.134 H 271.1°. Best body text is #FFFFFF at 14.38:1 contrast (WCAG AA passes).

Color values

HEX	#181F6E
RGB	rgb(24, 31, 110)
HSL	hsl(235, 64%, 26%)
HSV	hsv(235, 78%, 43%)
CMYK	cmyk(78.2%, 71.8%, 0%, 56.9%)
CIE-LAB	lab(16.99, 26.97, -46.42)
CIE-LCH	lch(16.99, 53.68, 300.16°)
OKLab	oklab(29.54% 0.0027 -0.1343)
OKLCH	oklch(29.54% 0.134 271.1)
XYZ	xyz(3.6802, 2.2996, 14.9987)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F6E #6E6718

analogous

#184A6E #181F6E #3C186E

triadic

#181F6E #6E181F #1F6E18

tetradic

#181F6E #6E184A #6E6718 #186E3C

square

#181F6E #6E184A #6E6718 #186E3C

split-complementary

#181F6E #6E3C18 #4A6E18

monochromatic

#050719 #0D113C #181F6E #232DA0 #2F3CD2

Accessibility & contrast

On white

14.38

#181F6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#181F6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F6E

14.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F6E	#FFFFFF	#000000	##FFFFFF
##181F6E	1.00	14.38	1.46	14.38
#FFFFFF	14.38	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E70

Deuteranopia (green-blind)

#00266D

Tritanopia (blue-blind)

#003543

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181f6e;
/* rgb */ color: rgb(24, 31, 110);
/* oklch */ color: oklch(29.5% 0.134 271.1);

Tailwind

colors: {
  custom: {
    50: '#645b98',
    500: '#181f6e',
    950: '#000000',
  },
}

SCSS

$custom: #181f6e;
$custom-light: #645b98;
$custom-dark: #000000;

JSON

{
  "hex": "#181f6e",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 110
  },
  "hsl": {
    "h": 235.116,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.2954,
    "c": 0.13433,
    "h": 271.1
  },
  "luminance": 0.023
}

Semantic roles & 50–950 ramp

primary

#181F6E

secondary

#A49B3E

accent

#DA41E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #181F6E

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

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