#1D2188#1D2188

#1D2188 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.165 H 271.3°. Best body text is #FFFFFF at 12.92:1 contrast (WCAG AA passes).

Color values

HEX	#1D2188
RGB	rgb(29, 33, 136)
HSL	hsl(238, 65%, 32%)
HSV	hsv(238, 79%, 53%)
CMYK	cmyk(78.7%, 75.7%, 0%, 46.7%)
CIE-LAB	lab(20.54, 35.81, -57.14)
CIE-LCH	lch(20.54, 67.43, 302.07°)
OKLab	oklab(33.01% 0.0036 -0.1654)
OKLCH	oklch(33.01% 0.165 271.3)
XYZ	xyz(5.4930, 3.1259, 23.6016)
Luminance	0.0313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2188 #88841D

analogous

#1D5788 #1D2188 #4F1D88

triadic

#1D2188 #881D21 #21881D

tetradic

#1D2188 #881D57 #88841D #1D884F

square

#1D2188 #881D57 #88841D #1D884F

split-complementary

#1D2188 #884F1D #57881D

monochromatic

#070923 #121556 #1D2188 #282DBA #484DD8

Accessibility & contrast

On white

12.92

#1D2188 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1D2188 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2188

12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2188	#FFFFFF	#000000	##FFFFFF
##1D2188	1.00	12.92	1.63	12.92
#FFFFFF	12.92	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378B

Deuteranopia (green-blind)

#002C86

Tritanopia (blue-blind)

#003F52

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2188;
/* rgb */ color: rgb(29, 33, 136);
/* oklch */ color: oklch(33.0% 0.165 271.3);

Tailwind

colors: {
  custom: {
    50: '#6d5dac',
    500: '#1d2188',
    950: '#000000',
  },
}

SCSS

$custom: #1d2188;
$custom-light: #6d5dac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2188",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 136
  },
  "hsl": {
    "h": 237.757,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.33009,
    "c": 0.16547,
    "h": 271.3
  },
  "luminance": 0.03126
}

Semantic roles & 50–950 ramp

primary

#1D2188

secondary

#BAB647

accent

#E240E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D2188

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

Preview Lab → · Contrast checker → · Palette generator →