#1D3D89#1D3D89

#1D3D89 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.133 H 264.0°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D89
RGB	rgb(29, 61, 137)
HSL	hsl(222, 65%, 33%)
HSV	hsv(222, 79%, 54%)
CMYK	cmyk(78.8%, 55.5%, 0%, 46.3%)
CIE-LAB	lab(27.86, 17.40, -45.79)
CIE-LCH	lch(27.86, 48.98, 290.81°)
OKLab	oklab(38.42% -0.014 -0.132)
OKLCH	oklch(38.42% 0.133 264)
XYZ	xyz(6.6892, 5.4041, 24.3526)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D89 #89691D

analogous

#1D7389 #1D3D89 #331D89

triadic

#1D3D89 #891D3D #3D891D

tetradic

#1D3D89 #891D73 #89691D #1D8933

square

#1D3D89 #891D73 #89691D #1D8933

split-complementary

#1D3D89 #89331D #73891D

monochromatic

#081024 #122756 #1D3D89 #2853BC #4873D8

Accessibility & contrast

On white

10.09

#1D3D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1D3D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D89

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D89	#FFFFFF	#000000	##FFFFFF
##1D3D89	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478C

Deuteranopia (green-blind)

#003D87

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1d3d89;
/* rgb */ color: rgb(29, 61, 137);
/* oklch */ color: oklch(38.4% 0.133 264.0);

Tailwind

colors: {
  custom: {
    50: '#6b72ac',
    500: '#1d3d89',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d89;
$custom-light: #6b72ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d89",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 137
  },
  "hsl": {
    "h": 222.222,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.38425,
    "c": 0.13271,
    "h": 264
  },
  "luminance": 0.05405
}

Semantic roles & 50–950 ramp

primary

#1D3D89

secondary

#BA9847

accent

#B640E8

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1D3D89

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

Preview Lab → · Contrast checker → · Palette generator →