#121F2A#121F2A

#121F2A is a very dark, muted cyan. Relative luminance 0.013; OKLCH L 23.3% C 0.028 H 244.9°. Best body text is #FFFFFF at 16.73:1 contrast (WCAG AA passes).

Color values

HEX	#121F2A
RGB	rgb(18, 31, 42)
HSL	hsl(208, 40%, 12%)
HSV	hsv(208, 57%, 16%)
CMYK	cmyk(57.1%, 26.2%, 0%, 83.5%)
CIE-LAB	lab(11.10, -1.80, -9.15)
CIE-LCH	lch(11.10, 9.33, 258.85°)
OKLab	oklab(23.28% -0.0119 -0.0254)
OKLCH	oklch(23.28% 0.028 244.9)
XYZ	xyz(1.1572, 1.2757, 2.3753)
Luminance	0.0128 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F2A #2A1D12

analogous

#122A29 #121F2A #12132A

triadic

#121F2A #2A121F #1F2A12

tetradic

#121F2A #29122A #2A1D12 #132A12

square

#121F2A #29122A #2A1D12 #132A12

split-complementary

#121F2A #2A1213 #2A2912

monochromatic

#091015 #091015 #121F2A #243F55 #375E80

Accessibility & contrast

On white

16.73

#121F2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#121F2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F2A

16.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F2A	#FFFFFF	#000000	##FFFFFF
##121F2A	1.00	16.73	1.26	16.73
#FFFFFF	16.73	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1F2B

Deuteranopia (green-blind)

#171D2A

Tritanopia (blue-blind)

#082223

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #121f2a;
/* rgb */ color: rgb(18, 31, 42);
/* oklch */ color: oklch(23.3% 0.028 244.9);

Tailwind

colors: {
  custom: {
    50: '#515a63',
    500: '#121f2a',
    950: '#000000',
  },
}

SCSS

$custom: #121f2a;
$custom-light: #515a63;
$custom-dark: #000000;

JSON

{
  "hex": "#121f2a",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 42
  },
  "hsl": {
    "h": 207.5,
    "s": 40,
    "l": 11.765
  },
  "oklch": {
    "l": 0.23283,
    "c": 0.02808,
    "h": 244.9
  },
  "luminance": 0.01276
}

Semantic roles & 50–950 ramp

primary

#121F2A

secondary

#614A37

accent

#8F58D0

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #121F2A

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

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