#121F42#121F42

#121F42 is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 25.0% C 0.069 H 266.2°. Best body text is #FFFFFF at 16.15:1 contrast (WCAG AA passes).

Color values

HEX	#121F42
RGB	rgb(18, 31, 66)
HSL	hsl(224, 57%, 16%)
HSV	hsv(224, 73%, 26%)
CMYK	cmyk(72.7%, 53%, 0%, 74.1%)
CIE-LAB	lab(12.62, 7.97, -23.92)
CIE-LCH	lch(12.62, 25.21, 288.44°)
OKLab	oklab(24.95% -0.0045 -0.0684)
OKLCH	oklch(24.95% 0.069 266.2)
XYZ	xyz(1.7225, 1.5018, 5.3523)
Luminance	0.0150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F42 #423512

analogous

#123742 #121F42 #1D1242

triadic

#121F42 #42121F #1F4212

tetradic

#121F42 #421237 #423512 #12421D

square

#121F42 #421237 #423512 #12421D

split-complementary

#121F42 #421D12 #374212

monochromatic

#070B18 #070B18 #121F42 #1F3672 #2C4CA2

Accessibility & contrast

On white

16.15

#121F42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#121F42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F42

16.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F42	#FFFFFF	#000000	##FFFFFF
##121F42	1.00	16.15	1.30	16.15
#FFFFFF	16.15	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D2343

Deuteranopia (green-blind)

#051F41

Tritanopia (blue-blind)

#00272D

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121f42;
/* rgb */ color: rgb(18, 31, 66);
/* oklch */ color: oklch(25.0% 0.069 266.2);

Tailwind

colors: {
  custom: {
    50: '#565a76',
    500: '#121f42',
    950: '#000000',
  },
}

SCSS

$custom: #121f42;
$custom-light: #565a76;
$custom-dark: #000000;

JSON

{
  "hex": "#121f42",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 66
  },
  "hsl": {
    "h": 223.75,
    "s": 57.143,
    "l": 16.471
  },
  "oklch": {
    "l": 0.24953,
    "c": 0.06857,
    "h": 266.2
  },
  "luminance": 0.01502
}

Semantic roles & 50–950 ramp

primary

#121F42

secondary

#7B6835

accent

#B747E0

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #121F42

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

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