#1C1879#1C1879

#1C1879 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.156 H 273.5°. Best body text is #FFFFFF at 14.42:1 contrast (WCAG AA passes).

Color values

HEX	#1C1879
RGB	rgb(28, 24, 121)
HSL	hsl(242, 67%, 28%)
HSV	hsv(242, 80%, 47%)
CMYK	cmyk(76.9%, 80.2%, 0%, 52.5%)
CIE-LAB	lab(16.89, 35.76, -53.66)
CIE-LCH	lch(16.89, 64.49, 303.68°)
OKLab	oklab(29.91% 0.0094 -0.1553)
OKLCH	oklch(29.91% 0.156 273.5)
XYZ	xyz(4.2556, 2.2802, 18.3013)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1879 #757918

analogous

#184479 #1C1879 #4C1879

triadic

#1C1879 #791C18 #18791C

tetradic

#1C1879 #791844 #757918 #18794C

square

#1C1879 #791844 #757918 #18794C

split-complementary

#1C1879 #794C18 #447918

monochromatic

#06051A #100E46 #1C1879 #2822AC #3B35D7

Accessibility & contrast

On white

14.42

#1C1879 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1C1879 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1879

14.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1879	#FFFFFF	#000000	##FFFFFF
##1C1879	1.00	14.42	1.46	14.42
#FFFFFF	14.42	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7C

Deuteranopia (green-blind)

#002577

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1c1879;
/* rgb */ color: rgb(28, 24, 121);
/* oklch */ color: oklch(29.9% 0.156 273.5);

Tailwind

colors: {
  custom: {
    50: '#6957a1',
    500: '#1c1879',
    950: '#000000',
  },
}

SCSS

$custom: #1c1879;
$custom-light: #6957a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1879",
  "rgb": {
    "r": 28,
    "g": 24,
    "b": 121
  },
  "hsl": {
    "h": 242.474,
    "s": 66.897,
    "l": 28.431
  },
  "oklch": {
    "l": 0.29906,
    "c": 0.15554,
    "h": 273.5
  },
  "luminance": 0.02281
}

Semantic roles & 50–950 ramp

primary

#1C1879

secondary

#A9AE3F

accent

#EA3EE3

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1C1879

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

Preview Lab → · Contrast checker → · Palette generator →