#121F2F#121F2F

#121F2F is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.6% C 0.036 H 254.2°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#121F2F
RGB	rgb(18, 31, 47)
HSL	hsl(213, 45%, 13%)
HSV	hsv(213, 62%, 18%)
CMYK	cmyk(61.7%, 34%, 0%, 81.6%)
CIE-LAB	lab(11.37, 0.12, -12.37)
CIE-LCH	lch(11.37, 12.37, 270.55°)
OKLab	oklab(23.58% -0.0098 -0.0347)
OKLCH	oklch(23.58% 0.036 254.2)
XYZ	xyz(1.2524, 1.3137, 2.8764)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F2F #2F2212

analogous

#122D2F #121F2F #13122F

triadic

#121F2F #2F121F #1F2F12

tetradic

#121F2F #2F122D #2F2212 #122F13

square

#121F2F #2F122D #2F2212 #122F13

split-complementary

#121F2F #2F1312 #2D2F12

monochromatic

#080F16 #080F16 #121F2F #233C5B #345988

Accessibility & contrast

On white

16.63

#121F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#121F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F2F

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F2F	#FFFFFF	#000000	##FFFFFF
##121F2F	1.00	16.63	1.26	16.63
#FFFFFF	16.63	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#192030

Deuteranopia (green-blind)

#151D2F

Tritanopia (blue-blind)

#052325

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #121f2f;
/* rgb */ color: rgb(18, 31, 47);
/* oklch */ color: oklch(23.6% 0.036 254.2);

Tailwind

colors: {
  custom: {
    50: '#525a67',
    500: '#121f2f',
    950: '#000000',
  },
}

SCSS

$custom: #121f2f;
$custom-light: #525a67;
$custom-dark: #000000;

JSON

{
  "hex": "#121f2f",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 47
  },
  "hsl": {
    "h": 213.103,
    "s": 44.615,
    "l": 12.745
  },
  "oklch": {
    "l": 0.23581,
    "c": 0.03605,
    "h": 254.2
  },
  "luminance": 0.01314
}

Semantic roles & 50–950 ramp

primary

#121F2F

secondary

#675136

accent

#9B53D4

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #121F2F

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

Preview Lab → · Contrast checker → · Palette generator →