#181A8F#181A8F

#181A8F is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.182 H 269.7°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#181A8F
RGB	rgb(24, 26, 143)
HSL	hsl(239, 71%, 33%)
HSV	hsv(239, 83%, 56%)
CMYK	cmyk(83.2%, 81.8%, 0%, 43.9%)
CIE-LAB	lab(19.70, 41.85, -62.91)
CIE-LCH	lch(19.70, 75.56, 303.63°)
OKLab	oklab(32.58% -0.0009 -0.1822)
OKLCH	oklch(32.58% 0.182 269.7)
XYZ	xyz(5.7023, 2.9155, 26.2435)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A8F #8F8D18

analogous

#18558F #181A8F #52188F

triadic

#181A8F #8F181A #1A8F18

tetradic

#181A8F #8F1855 #8F8D18 #188F52

square

#181A8F #8F1855 #8F8D18 #188F52

split-complementary

#181A8F #8F5218 #558F18

monochromatic

#060726 #0F105B #181A8F #2124C3 #4245DF

Accessibility & contrast

On white

13.26

#181A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#181A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A8F

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A8F	#FFFFFF	#000000	##FFFFFF
##181A8F	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003692

Deuteranopia (green-blind)

#00298D

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #181a8f;
/* rgb */ color: rgb(24, 26, 143);
/* oklch */ color: oklch(32.6% 0.182 269.7);

Tailwind

colors: {
  custom: {
    50: '#6e59b1',
    500: '#181a8f',
    950: '#000000',
  },
}

SCSS

$custom: #181a8f;
$custom-light: #6e59b1;
$custom-dark: #000000;

JSON

{
  "hex": "#181a8f",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 143
  },
  "hsl": {
    "h": 238.992,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32584,
    "c": 0.18219,
    "h": 269.7
  },
  "luminance": 0.02916
}

Semantic roles & 50–950 ramp

primary

#181A8F

secondary

#C0BE43

accent

#EB3AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #181A8F

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

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