#1C3087#1C3087

#1C3087 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.5% C 0.147 H 267.8°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#1C3087
RGB	rgb(28, 48, 135)
HSL	hsl(229, 66%, 32%)
HSV	hsv(229, 79%, 53%)
CMYK	cmyk(79.3%, 64.4%, 0%, 47.1%)
CIE-LAB	lab(24.03, 25.52, -50.78)
CIE-LCH	lch(24.03, 56.83, 296.68°)
OKLab	oklab(35.5% -0.0055 -0.1468)
OKLCH	oklch(35.5% 0.147 267.8)
XYZ	xyz(5.9075, 4.1094, 23.3988)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3087 #87731C

analogous

#1C6687 #1C3087 #3E1C87

triadic

#1C3087 #871C30 #30871C

tetradic

#1C3087 #871C66 #87731C #1C873E

square

#1C3087 #871C66 #87731C #1C873E

split-complementary

#1C3087 #873E1C #66871C

monochromatic

#070C22 #111E54 #1C3087 #2742BA #4561D8

Accessibility & contrast

On white

11.53

#1C3087 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1C3087 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3087

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3087	#FFFFFF	#000000	##FFFFFF
##1C3087	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8A

Deuteranopia (green-blind)

#003485

Tritanopia (blue-blind)

#004756

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1c3087;
/* rgb */ color: rgb(28, 48, 135);
/* oklch */ color: oklch(35.5% 0.147 267.8);

Tailwind

colors: {
  custom: {
    50: '#6b68ab',
    500: '#1c3087',
    950: '#000000',
  },
}

SCSS

$custom: #1c3087;
$custom-light: #6b68ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3087",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 135
  },
  "hsl": {
    "h": 228.785,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.35497,
    "c": 0.14695,
    "h": 267.8
  },
  "luminance": 0.0411
}

Semantic roles & 50–950 ramp

primary

#1C3087

secondary

#BAA445

accent

#C93FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1C3087

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

Preview Lab → · Contrast checker → · Palette generator →