#1C2139#1C2139

#1C2139 is a dark, muted blue. Relative luminance 0.016; OKLCH L 25.6% C 0.046 H 273.8°. Best body text is #FFFFFF at 15.84:1 contrast (WCAG AA passes).

Color values

HEX	#1C2139
RGB	rgb(28, 33, 57)
HSL	hsl(230, 34%, 17%)
HSV	hsv(230, 51%, 22%)
CMYK	cmyk(50.9%, 42.1%, 0%, 77.6%)
CIE-LAB	lab(13.41, 5.53, -16.28)
CIE-LCH	lch(13.41, 17.20, 288.77°)
OKLab	oklab(25.56% 0.003 -0.0458)
OKLCH	oklch(25.56% 0.046 273.8)
XYZ	xyz(1.7610, 1.6299, 4.0919)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2139 #39341C

analogous

#1C3039 #1C2139 #261C39

triadic

#1C2139 #391C21 #21391C

tetradic

#1C2139 #391C30 #39341C #1C3926

square

#1C2139 #391C30 #39341C #1C3926

split-complementary

#1C2139 #39261C #30391C

monochromatic

#0A0C15 #0A0C15 #1C2139 #303962 #44518B

Accessibility & contrast

On white

15.84

#1C2139 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#1C2139 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2139

15.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2139	#FFFFFF	#000000	##FFFFFF
##1C2139	1.00	15.84	1.33	15.84
#FFFFFF	15.84	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18243A

Deuteranopia (green-blind)

#162138

Tritanopia (blue-blind)

#12262A

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1c2139;
/* rgb */ color: rgb(28, 33, 57);
/* oklch */ color: oklch(25.6% 0.046 273.8);

Tailwind

colors: {
  custom: {
    50: '#5a5c6f',
    500: '#1c2139',
    950: '#000000',
  },
}

SCSS

$custom: #1c2139;
$custom-light: #5a5c6f;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2139",
  "rgb": {
    "r": 28,
    "g": 33,
    "b": 57
  },
  "hsl": {
    "h": 229.655,
    "s": 34.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.25557,
    "c": 0.04589,
    "h": 273.8
  },
  "luminance": 0.0163
}

Semantic roles & 50–950 ramp

primary

#1C2139

secondary

#6E6643

accent

#B75ECA

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#040407

muted

#79797A

Preview Lab

Preview with #1C2139

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

Preview Lab → · Contrast checker → · Palette generator →