#1C2582#1C2582

#1C2582 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.0% C 0.153 H 270.5°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1C2582
RGB	rgb(28, 37, 130)
HSL	hsl(235, 65%, 31%)
HSV	hsv(235, 78%, 51%)
CMYK	cmyk(78.5%, 71.5%, 0%, 49%)
CIE-LAB	lab(20.76, 31.00, -53.01)
CIE-LCH	lch(20.76, 61.41, 300.32°)
OKLab	oklab(32.96% 0.0014 -0.1534)
OKLCH	oklch(32.96% 0.153 270.5)
XYZ	xyz(5.1683, 3.1812, 21.4564)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2582 #82791C

analogous

#1C5882 #1C2582 #461C82

triadic

#1C2582 #821C25 #25821C

tetradic

#1C2582 #821C58 #82791C #1C8246

square

#1C2582 #821C58 #82791C #1C8246

split-complementary

#1C2582 #82461C #58821C

monochromatic

#06081D #111750 #1C2582 #2733B4 #424FD6

Accessibility & contrast

On white

12.83

#1C2582 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1C2582 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2582

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2582	#FFFFFF	#000000	##FFFFFF
##1C2582	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)

#003785

Deuteranopia (green-blind)

#002D80

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1c2582;
/* rgb */ color: rgb(28, 37, 130);
/* oklch */ color: oklch(33.0% 0.153 270.5);

Tailwind

colors: {
  custom: {
    50: '#6b60a7',
    500: '#1c2582',
    950: '#000000',
  },
}

SCSS

$custom: #1c2582;
$custom-light: #6b60a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2582",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 130
  },
  "hsl": {
    "h": 234.706,
    "s": 64.557,
    "l": 30.98
  },
  "oklch": {
    "l": 0.32955,
    "c": 0.15346,
    "h": 270.5
  },
  "luminance": 0.03182
}

Semantic roles & 50–950 ramp

primary

#1C2582

secondary

#B5AB44

accent

#D940E8

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1C2582

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

Preview Lab → · Contrast checker → · Palette generator →