#181E79#181E79

#181E79 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.150 H 270.7°. Best body text is #FFFFFF at 13.99:1 contrast (WCAG AA passes).

Color values

HEX	#181E79
RGB	rgb(24, 30, 121)
HSL	hsl(236, 67%, 28%)
HSV	hsv(236, 80%, 47%)
CMYK	cmyk(80.2%, 75.2%, 0%, 52.5%)
CIE-LAB	lab(17.93, 31.78, -51.96)
CIE-LCH	lch(17.93, 60.91, 301.46°)
OKLab	oklab(30.58% 0.0017 -0.1504)
OKLCH	oklch(30.58% 0.15 270.7)
XYZ	xyz(4.2910, 2.5027, 18.3424)
Luminance	0.0250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E79 #797318

analogous

#184E79 #181E79 #421879

triadic

#181E79 #79181E #1E7918

tetradic

#181E79 #79184E #797318 #187942

square

#181E79 #79184E #797318 #187942

split-complementary

#181E79 #794218 #4E7918

monochromatic

#05061A #0E1146 #181E79 #222BAC #353FD7

Accessibility & contrast

On white

13.99

#181E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#181E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E79

13.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E79	#FFFFFF	#000000	##FFFFFF
##181E79	1.00	13.99	1.50	13.99
#FFFFFF	13.99	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317C

Deuteranopia (green-blind)

#002777

Tritanopia (blue-blind)

#003849

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #181e79;
/* rgb */ color: rgb(24, 30, 121);
/* oklch */ color: oklch(30.6% 0.150 270.7);

Tailwind

colors: {
  custom: {
    50: '#675aa1',
    500: '#181e79',
    950: '#000000',
  },
}

SCSS

$custom: #181e79;
$custom-light: #675aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#181e79",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 121
  },
  "hsl": {
    "h": 236.289,
    "s": 66.897,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30575,
    "c": 0.15045,
    "h": 270.7
  },
  "luminance": 0.02503
}

Semantic roles & 50–950 ramp

primary

#181E79

secondary

#AEA73F

accent

#DF3EEA

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #181E79

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

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