#181A80#181A80

#181A80 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.164 H 270.7°. Best body text is #FFFFFF at 14.02:1 contrast (WCAG AA passes).

Color values

HEX	#181A80
RGB	rgb(24, 26, 128)
HSL	hsl(239, 68%, 30%)
HSV	hsv(239, 81%, 50%)
CMYK	cmyk(81.3%, 79.7%, 0%, 49.8%)
CIE-LAB	lab(17.88, 36.73, -56.51)
CIE-LCH	lch(17.88, 67.39, 303.02°)
OKLab	oklab(30.78% 0.0021 -0.1636)
OKLCH	oklch(30.78% 0.164 270.7)
XYZ	xyz(4.6410, 2.4910, 20.6541)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A80 #807E18

analogous

#184E80 #181A80 #4A1880

triadic

#181A80 #80181A #1A8018

tetradic

#181A80 #80184E #807E18 #18804A

square

#181A80 #80184E #807E18 #18804A

split-complementary

#181A80 #804A18 #4E8018

monochromatic

#05051A #0E104C #181A80 #2224B4 #393CDA

Accessibility & contrast

On white

14.02

#181A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#181A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A80

14.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A80	#FFFFFF	#000000	##FFFFFF
##181A80	1.00	14.02	1.50	14.02
#FFFFFF	14.02	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003183

Deuteranopia (green-blind)

#00267E

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #181a80;
/* rgb */ color: rgb(24, 26, 128);
/* oklch */ color: oklch(30.8% 0.164 270.7);

Tailwind

colors: {
  custom: {
    50: '#6a58a6',
    500: '#181a80',
    950: '#000000',
  },
}

SCSS

$custom: #181a80;
$custom-light: #6a58a6;
$custom-dark: #000000;

JSON

{
  "hex": "#181a80",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 128
  },
  "hsl": {
    "h": 238.846,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.30775,
    "c": 0.16364,
    "h": 270.7
  },
  "luminance": 0.02491
}

Semantic roles & 50–950 ramp

primary

#181A80

secondary

#B4B240

accent

#E83DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #181A80

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

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