#1D255C#1D255C

#1D255C is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.3% C 0.098 H 272.6°. Best body text is #FFFFFF at 14.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D255C
RGB	rgb(29, 37, 92)
HSL	hsl(232, 52%, 24%)
HSV	hsv(232, 68%, 36%)
CMYK	cmyk(68.5%, 59.8%, 0%, 63.9%)
CIE-LAB	lab(17.26, 16.39, -34.12)
CIE-LCH	lch(17.26, 37.85, 295.65°)
OKLab	oklab(29.31% 0.0044 -0.0981)
OKLCH	oklch(29.31% 0.098 272.6)
XYZ	xyz(3.0994, 2.3568, 10.4147)
Luminance	0.0236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D255C #5C541D

analogous

#1D445C #1D255C #341D5C

triadic

#1D255C #5C1D25 #255C1D

tetradic

#1D255C #5C1D44 #5C541D #1D5C34

square

#1D255C #5C1D44 #5C541D #1D5C34

split-complementary

#1D255C #5C341D #445C1D

monochromatic

#070917 #0E122D #1D255C #2C388B #3A4AB9

Accessibility & contrast

On white

14.27

#1D255C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1D255C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D255C

14.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D255C	#FFFFFF	#000000	##FFFFFF
##1D255C	1.00	14.27	1.47	14.27
#FFFFFF	14.27	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5E

Deuteranopia (green-blind)

#00285B

Tritanopia (blue-blind)

#00323C

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1d255c;
/* rgb */ color: rgb(29, 37, 92);
/* oklch */ color: oklch(29.3% 0.098 272.6);

Tailwind

colors: {
  custom: {
    50: '#615f8b',
    500: '#1d255c',
    950: '#000000',
  },
}

SCSS

$custom: #1d255c;
$custom-light: #615f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d255c",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 92
  },
  "hsl": {
    "h": 232.381,
    "s": 52.066,
    "l": 23.725
  },
  "oklch": {
    "l": 0.29306,
    "c": 0.09816,
    "h": 272.6
  },
  "luminance": 0.02357
}

Semantic roles & 50–950 ramp

primary

#1D255C

secondary

#918744

accent

#C94CDC

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #1D255C

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

Preview Lab → · Contrast checker → · Palette generator →