#121C2A#121C2A

#121C2A is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.4% C 0.031 H 256.9°. Best body text is #FFFFFF at 17.14:1 contrast (WCAG AA passes).

Color values

HEX	#121C2A
RGB	rgb(18, 28, 42)
HSL	hsl(215, 40%, 12%)
HSV	hsv(215, 57%, 16%)
CMYK	cmyk(57.1%, 33.3%, 0%, 83.5%)
CIE-LAB	lab(10.00, 0.42, -10.86)
CIE-LCH	lch(10.00, 10.87, 272.22°)
OKLab	oklab(22.42% -0.0071 -0.0303)
OKLCH	oklch(22.42% 0.031 256.9)
XYZ	xyz(1.0825, 1.1262, 2.3504)
Luminance	0.0113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C2A #2A2012

analogous

#12282A #121C2A #14122A

triadic

#121C2A #2A121C #1C2A12

tetradic

#121C2A #2A1228 #2A2012 #122A14

square

#121C2A #2A1228 #2A2012 #122A14

split-complementary

#121C2A #2A1412 #282A12

monochromatic

#090E15 #090E15 #121C2A #243955 #375580

Accessibility & contrast

On white

17.14

#121C2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#121C2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C2A

17.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C2A	#FFFFFF	#000000	##FFFFFF
##121C2A	1.00	17.14	1.23	17.14
#FFFFFF	17.14	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171D2B

Deuteranopia (green-blind)

#141A2A

Tritanopia (blue-blind)

#081F21

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #121c2a;
/* rgb */ color: rgb(18, 28, 42);
/* oklch */ color: oklch(22.4% 0.031 256.9);

Tailwind

colors: {
  custom: {
    50: '#515763',
    500: '#121c2a',
    950: '#000000',
  },
}

SCSS

$custom: #121c2a;
$custom-light: #515763;
$custom-dark: #000000;

JSON

{
  "hex": "#121c2a",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 42
  },
  "hsl": {
    "h": 215,
    "s": 40,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22416,
    "c": 0.03114,
    "h": 256.9
  },
  "luminance": 0.01126
}

Semantic roles & 50–950 ramp

primary

#121C2A

secondary

#614F37

accent

#9E58D0

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #121C2A

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

Preview Lab → · Contrast checker → · Palette generator →