#1D2288#1D2288

#1D2288 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.2% C 0.164 H 271.1°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1D2288
RGB	rgb(29, 34, 136)
HSL	hsl(237, 65%, 32%)
HSV	hsv(237, 79%, 53%)
CMYK	cmyk(78.7%, 75%, 0%, 46.7%)
CIE-LAB	lab(20.76, 35.20, -56.78)
CIE-LCH	lch(20.76, 66.80, 301.79°)
OKLab	oklab(33.16% 0.0032 -0.1644)
OKLCH	oklch(33.16% 0.164 271.1)
XYZ	xyz(5.5211, 3.1822, 23.6110)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2288 #88831D

analogous

#1D5888 #1D2288 #4D1D88

triadic

#1D2288 #881D22 #22881D

tetradic

#1D2288 #881D58 #88831D #1D884D

square

#1D2288 #881D58 #88831D #1D884D

split-complementary

#1D2288 #884D1D #58881D

monochromatic

#070923 #121556 #1D2288 #282FBA #484ED8

Accessibility & contrast

On white

12.83

#1D2288 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1D2288 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2288

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2288	#FFFFFF	#000000	##FFFFFF
##1D2288	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378B

Deuteranopia (green-blind)

#002D86

Tritanopia (blue-blind)

#003F53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1d2288;
/* rgb */ color: rgb(29, 34, 136);
/* oklch */ color: oklch(33.2% 0.164 271.1);

Tailwind

colors: {
  custom: {
    50: '#6d5eac',
    500: '#1d2288',
    950: '#000000',
  },
}

SCSS

$custom: #1d2288;
$custom-light: #6d5eac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2288",
  "rgb": {
    "r": 29,
    "g": 34,
    "b": 136
  },
  "hsl": {
    "h": 237.196,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.33164,
    "c": 0.16442,
    "h": 271.1
  },
  "luminance": 0.03183
}

Semantic roles & 50–950 ramp

primary

#1D2288

secondary

#BAB447

accent

#E040E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D2288

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

Preview Lab → · Contrast checker → · Palette generator →