#1C3D89#1C3D89

#1C3D89 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.133 H 263.6°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D89
RGB	rgb(28, 61, 137)
HSL	hsl(222, 66%, 32%)
HSV	hsv(222, 80%, 54%)
CMYK	cmyk(79.6%, 55.5%, 0%, 46.3%)
CIE-LAB	lab(27.82, 17.28, -45.85)
CIE-LCH	lch(27.82, 49.00, 290.65°)
OKLab	oklab(38.39% -0.0147 -0.1322)
OKLCH	oklch(38.39% 0.133 263.6)
XYZ	xyz(6.6614, 5.3897, 24.3513)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D89 #89681C

analogous

#1C7489 #1C3D89 #321C89

triadic

#1C3D89 #891C3D #3D891C

tetradic

#1C3D89 #891C74 #89681C #1C8932

square

#1C3D89 #891C74 #89681C #1C8932

split-complementary

#1C3D89 #89321C #74891C

monochromatic

#071023 #122656 #1C3D89 #2654BC #4673D9

Accessibility & contrast

On white

10.10

#1C3D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1C3D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D89

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D89	#FFFFFF	#000000	##FFFFFF
##1C3D89	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478C

Deuteranopia (green-blind)

#003D88

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c3d89;
/* rgb */ color: rgb(28, 61, 137);
/* oklch */ color: oklch(38.4% 0.133 263.6);

Tailwind

colors: {
  custom: {
    50: '#6a71ac',
    500: '#1c3d89',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d89;
$custom-light: #6a71ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d89",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 137
  },
  "hsl": {
    "h": 221.835,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.38385,
    "c": 0.133,
    "h": 263.6
  },
  "luminance": 0.05391
}

Semantic roles & 50–950 ramp

primary

#1C3D89

secondary

#BB9746

accent

#B53FE9

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1C3D89

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

Preview Lab → · Contrast checker → · Palette generator →