#121D2A#121D2A

#121D2A is a very dark, muted cyan. Relative luminance 0.012; OKLCH L 22.7% C 0.030 H 253.2°. Best body text is #FFFFFF at 17.01:1 contrast (WCAG AA passes).

Color values

HEX	#121D2A
RGB	rgb(18, 29, 42)
HSL	hsl(213, 40%, 12%)
HSV	hsv(213, 57%, 16%)
CMYK	cmyk(57.1%, 31%, 0%, 83.5%)
CIE-LAB	lab(10.37, -0.33, -10.29)
CIE-LCH	lch(10.37, 10.30, 268.18°)
OKLab	oklab(22.7% -0.0087 -0.0287)
OKLCH	oklch(22.7% 0.03 253.2)
XYZ	xyz(1.1066, 1.1744, 2.3584)
Luminance	0.0117 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D2A #2A1F12

analogous

#12292A #121D2A #13122A

triadic

#121D2A #2A121D #1D2A12

tetradic

#121D2A #2A1229 #2A1F12 #122A13

square

#121D2A #2A1229 #2A1F12 #122A13

split-complementary

#121D2A #2A1312 #292A12

monochromatic

#090F15 #090F15 #121D2A #243B55 #375880

Accessibility & contrast

On white

17.01

#121D2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#121D2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D2A

17.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D2A	#FFFFFF	#000000	##FFFFFF
##121D2A	1.00	17.01	1.23	17.01
#FFFFFF	17.01	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181E2B

Deuteranopia (green-blind)

#151B2A

Tritanopia (blue-blind)

#082021

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #121d2a;
/* rgb */ color: rgb(18, 29, 42);
/* oklch */ color: oklch(22.7% 0.030 253.2);

Tailwind

colors: {
  custom: {
    50: '#515863',
    500: '#121d2a',
    950: '#000000',
  },
}

SCSS

$custom: #121d2a;
$custom-light: #515863;
$custom-dark: #000000;

JSON

{
  "hex": "#121d2a",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 42
  },
  "hsl": {
    "h": 212.5,
    "s": 40,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22703,
    "c": 0.02998,
    "h": 253.2
  },
  "luminance": 0.01174
}

Semantic roles & 50–950 ramp

primary

#121D2A

secondary

#614E37

accent

#9958D0

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #121D2A

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

Preview Lab → · Contrast checker → · Palette generator →