#121F41#121F41

#121F41 is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 24.9% C 0.067 H 266.0°. Best body text is #FFFFFF at 16.18:1 contrast (WCAG AA passes).

Color values

HEX	#121F41
RGB	rgb(18, 31, 65)
HSL	hsl(223, 57%, 16%)
HSV	hsv(223, 72%, 25%)
CMYK	cmyk(72.3%, 52.3%, 0%, 74.5%)
CIE-LAB	lab(12.54, 7.55, -23.34)
CIE-LCH	lch(12.54, 24.53, 287.92°)
OKLab	oklab(24.87% -0.0047 -0.0667)
OKLCH	oklch(24.87% 0.067 266)
XYZ	xyz(1.6932, 1.4901, 5.1984)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F41 #413412

analogous

#123741 #121F41 #1D1241

triadic

#121F41 #41121F #1F4112

tetradic

#121F41 #411237 #413412 #12411D

square

#121F41 #411237 #413412 #12411D

split-complementary

#121F41 #411D12 #374112

monochromatic

#070B18 #070B18 #121F41 #1F3671 #2D4DA1

Accessibility & contrast

On white

16.18

#121F41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#121F41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F41

16.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F41	#FFFFFF	#000000	##FFFFFF
##121F41	1.00	16.18	1.30	16.18
#FFFFFF	16.18	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E2342

Deuteranopia (green-blind)

#061F40

Tritanopia (blue-blind)

#00272C

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121f41;
/* rgb */ color: rgb(18, 31, 65);
/* oklch */ color: oklch(24.9% 0.067 266.0);

Tailwind

colors: {
  custom: {
    50: '#565a76',
    500: '#121f41',
    950: '#000000',
  },
}

SCSS

$custom: #121f41;
$custom-light: #565a76;
$custom-dark: #000000;

JSON

{
  "hex": "#121f41",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 65
  },
  "hsl": {
    "h": 223.404,
    "s": 56.627,
    "l": 16.275
  },
  "oklch": {
    "l": 0.24872,
    "c": 0.06688,
    "h": 266
  },
  "luminance": 0.0149
}

Semantic roles & 50–950 ramp

primary

#121F41

secondary

#7A6735

accent

#B648E0

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #121F41

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

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