#121B31#121B31

#121B31 is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.6% C 0.045 H 266.1°. Best body text is #FFFFFF at 17.12:1 contrast (WCAG AA passes).

Color values

HEX	#121B31
RGB	rgb(18, 27, 49)
HSL	hsl(223, 46%, 13%)
HSV	hsv(223, 63%, 19%)
CMYK	cmyk(63.3%, 44.9%, 0%, 80.8%)
CIE-LAB	lab(10.06, 3.95, -15.88)
CIE-LCH	lch(10.06, 16.36, 283.96°)
OKLab	oklab(22.6% -0.0031 -0.0449)
OKLCH	oklch(22.6% 0.045 266.1)
XYZ	xyz(1.1956, 1.1341, 3.0610)
Luminance	0.0113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B31 #312812

analogous

#122A31 #121B31 #181231

triadic

#121B31 #31121B #1B3112

tetradic

#121B31 #31122A #312812 #123118

square

#121B31 #31122A #312812 #123118

split-complementary

#121B31 #311812 #2A3112

monochromatic

#080C16 #080C16 #121B31 #22345E #334C8B

Accessibility & contrast

On white

17.12

#121B31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#121B31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B31

17.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B31	#FFFFFF	#000000	##FFFFFF
##121B31	1.00	17.12	1.23	17.12
#FFFFFF	17.12	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#121D32

Deuteranopia (green-blind)

#0F1A31

Tritanopia (blue-blind)

#042023

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #121b31;
/* rgb */ color: rgb(18, 27, 49);
/* oklch */ color: oklch(22.6% 0.045 266.1);

Tailwind

colors: {
  custom: {
    50: '#525669',
    500: '#121b31',
    950: '#000000',
  },
}

SCSS

$custom: #121b31;
$custom-light: #525669;
$custom-dark: #000000;

JSON

{
  "hex": "#121b31",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 49
  },
  "hsl": {
    "h": 222.581,
    "s": 46.269,
    "l": 13.137
  },
  "oklch": {
    "l": 0.22601,
    "c": 0.045,
    "h": 266.1
  },
  "luminance": 0.01134
}

Semantic roles & 50–950 ramp

primary

#121B31

secondary

#695A36

accent

#B052D6

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #121B31

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

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