#1D255E#1D255E

#1D255E is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.5% C 0.101 H 272.6°. Best body text is #FFFFFF at 14.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D255E
RGB	rgb(29, 37, 94)
HSL	hsl(233, 53%, 24%)
HSV	hsv(233, 69%, 37%)
CMYK	cmyk(69.1%, 60.6%, 0%, 63.1%)
CIE-LAB	lab(17.42, 17.18, -35.18)
CIE-LCH	lch(17.42, 39.15, 296.03°)
OKLab	oklab(29.48% 0.0045 -0.1012)
OKLCH	oklch(29.48% 0.101 272.6)
XYZ	xyz(3.1880, 2.3922, 10.8812)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D255E #5E561D

analogous

#1D465E #1D255E #361D5E

triadic

#1D255E #5E1D25 #255E1D

tetradic

#1D255E #5E1D46 #5E561D #1D5E36

square

#1D255E #5E1D46 #5E561D #1D5E36

split-complementary

#1D255E #5E361D #465E1D

monochromatic

#070917 #0F132F #1D255E #2B378D #3A4ABC

Accessibility & contrast

On white

14.20

#1D255E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1D255E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D255E

14.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D255E	#FFFFFF	#000000	##FFFFFF
##1D255E	1.00	14.20	1.48	14.20
#FFFFFF	14.20	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E60

Deuteranopia (green-blind)

#00285D

Tritanopia (blue-blind)

#00333D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1d255e;
/* rgb */ color: rgb(29, 37, 94);
/* oklch */ color: oklch(29.5% 0.101 272.6);

Tailwind

colors: {
  custom: {
    50: '#625f8c',
    500: '#1d255e',
    950: '#000000',
  },
}

SCSS

$custom: #1d255e;
$custom-light: #625f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d255e",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 94
  },
  "hsl": {
    "h": 232.615,
    "s": 52.846,
    "l": 24.118
  },
  "oklch": {
    "l": 0.29482,
    "c": 0.10128,
    "h": 272.6
  },
  "luminance": 0.02392
}

Semantic roles & 50–950 ramp

primary

#1D255E

secondary

#938944

accent

#CA4CDC

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #1D255E

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

Preview Lab → · Contrast checker → · Palette generator →