#181E80#181E80

#181E80 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.4% C 0.160 H 270.2°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#181E80
RGB	rgb(24, 30, 128)
HSL	hsl(237, 68%, 30%)
HSV	hsv(237, 81%, 50%)
CMYK	cmyk(81.3%, 76.6%, 0%, 49.8%)
CIE-LAB	lab(18.72, 34.35, -55.12)
CIE-LCH	lch(18.72, 64.94, 301.93°)
OKLab	oklab(31.37% 0.0006 -0.1596)
OKLCH	oklch(31.37% 0.16 270.2)
XYZ	xyz(4.7359, 2.6807, 20.6857)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E80 #807A18

analogous

#185280 #181E80 #461880

triadic

#181E80 #80181E #1E8018

tetradic

#181E80 #801852 #807A18 #188046

square

#181E80 #801852 #807A18 #188046

split-complementary

#181E80 #804618 #528018

monochromatic

#05061A #0E124C #181E80 #222AB4 #3942DA

Accessibility & contrast

On white

13.67

#181E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#181E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E80

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E80	#FFFFFF	#000000	##FFFFFF
##181E80	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003383

Deuteranopia (green-blind)

#00287E

Tritanopia (blue-blind)

#003B4D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #181e80;
/* rgb */ color: rgb(24, 30, 128);
/* oklch */ color: oklch(31.4% 0.160 270.2);

Tailwind

colors: {
  custom: {
    50: '#695ba6',
    500: '#181e80',
    950: '#000000',
  },
}

SCSS

$custom: #181e80;
$custom-light: #695ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#181e80",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 128
  },
  "hsl": {
    "h": 236.538,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.31369,
    "c": 0.15964,
    "h": 270.2
  },
  "luminance": 0.02681
}

Semantic roles & 50–950 ramp

primary

#181E80

secondary

#B4AE40

accent

#E13DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #181E80

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

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