#121E3E#121E3E

#121E3E is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.4% C 0.063 H 266.3°. Best body text is #FFFFFF at 16.39:1 contrast (WCAG AA passes).

Color values

HEX	#121E3E
RGB	rgb(18, 30, 62)
HSL	hsl(224, 55%, 16%)
HSV	hsv(224, 71%, 24%)
CMYK	cmyk(71%, 51.6%, 0%, 75.7%)
CIE-LAB	lab(11.99, 7.04, -22.12)
CIE-LCH	lch(11.99, 23.21, 287.66°)
OKLab	oklab(24.38% -0.004 -0.0631)
OKLCH	oklch(24.38% 0.063 266.3)
XYZ	xyz(1.5829, 1.4048, 4.7442)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121E3E #3E3212

analogous

#12343E #121E3E #1C123E

triadic

#121E3E #3E121E #1E3E12

tetradic

#121E3E #3E1234 #3E3212 #123E1C

square

#121E3E #3E1234 #3E3212 #123E1C

split-complementary

#121E3E #3E1C12 #343E12

monochromatic

#070B18 #070B18 #121E3E #20356D #2E4C9D

Accessibility & contrast

On white

16.39

#121E3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#121E3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121E3E

16.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121E3E	#FFFFFF	#000000	##FFFFFF
##121E3E	1.00	16.39	1.28	16.39
#FFFFFF	16.39	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F223F

Deuteranopia (green-blind)

#081E3D

Tritanopia (blue-blind)

#00252A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121e3e;
/* rgb */ color: rgb(18, 30, 62);
/* oklch */ color: oklch(24.4% 0.063 266.3);

Tailwind

colors: {
  custom: {
    50: '#555973',
    500: '#121e3e',
    950: '#000000',
  },
}

SCSS

$custom: #121e3e;
$custom-light: #555973;
$custom-dark: #000000;

JSON

{
  "hex": "#121e3e",
  "rgb": {
    "r": 18,
    "g": 30,
    "b": 62
  },
  "hsl": {
    "h": 223.636,
    "s": 55,
    "l": 15.686
  },
  "oklch": {
    "l": 0.24376,
    "c": 0.06327,
    "h": 266.3
  },
  "luminance": 0.01405
}

Semantic roles & 50–950 ramp

primary

#121E3E

secondary

#776535

accent

#B649DE

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #121E3E

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

Preview Lab → · Contrast checker → · Palette generator →