#121C28#121C28

#121C28 is a very dark, muted cyan. Relative luminance 0.011; OKLCH L 22.3% C 0.028 H 253.5°. Best body text is #FFFFFF at 17.18:1 contrast (WCAG AA passes).

Color values

HEX	#121C28
RGB	rgb(18, 28, 40)
HSL	hsl(213, 38%, 11%)
HSV	hsv(213, 55%, 16%)
CMYK	cmyk(55%, 30%, 0%, 84.3%)
CIE-LAB	lab(9.89, -0.34, -9.55)
CIE-LCH	lch(9.89, 9.56, 267.99°)
OKLab	oklab(22.3% -0.0079 -0.0266)
OKLCH	oklch(22.3% 0.028 253.5)
XYZ	xyz(1.0476, 1.1122, 2.1666)
Luminance	0.0111 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C28 #281E12

analogous

#122728 #121C28 #131228

triadic

#121C28 #28121C #1C2812

tetradic

#121C28 #281227 #281E12 #122813

square

#121C28 #281227 #281E12 #122813

split-complementary

#121C28 #281312 #272812

monochromatic

#090F15 #090F15 #121C28 #253A52 #38577C

Accessibility & contrast

On white

17.18

#121C28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#121C28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C28

17.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C28	#FFFFFF	#000000	##FFFFFF
##121C28	1.00	17.18	1.22	17.18
#FFFFFF	17.18	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171C29

Deuteranopia (green-blind)

#151A28

Tritanopia (blue-blind)

#0A1F20

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #121c28;
/* rgb */ color: rgb(18, 28, 40);
/* oklch */ color: oklch(22.3% 0.028 253.5);

Tailwind

colors: {
  custom: {
    50: '#515761',
    500: '#121c28',
    950: '#000000',
  },
}

SCSS

$custom: #121c28;
$custom-light: #515761;
$custom-dark: #000000;

JSON

{
  "hex": "#121c28",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 40
  },
  "hsl": {
    "h": 212.727,
    "s": 37.931,
    "l": 11.373
  },
  "oklch": {
    "l": 0.22296,
    "c": 0.02773,
    "h": 253.5
  },
  "luminance": 0.01112
}

Semantic roles & 50–950 ramp

primary

#121C28

secondary

#5F4D37

accent

#995ACE

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #121C28

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

Preview Lab → · Contrast checker → · Palette generator →