#121A3D#121A3D

#121A3D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.3% C 0.068 H 270.7°. Best body text is #FFFFFF at 16.92:1 contrast (WCAG AA passes).

Color values

HEX	#121A3D
RGB	rgb(18, 26, 61)
HSL	hsl(229, 54%, 15%)
HSV	hsv(229, 70%, 24%)
CMYK	cmyk(70.5%, 57.4%, 0%, 76.1%)
CIE-LAB	lab(10.59, 9.71, -23.66)
CIE-LCH	lch(10.59, 25.58, 292.32°)
OKLab	oklab(23.28% 0.0008 -0.0677)
OKLCH	oklch(23.28% 0.068 270.7)
XYZ	xyz(1.4609, 1.2042, 4.5694)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121A3D #3D3512

analogous

#122F3D #121A3D #1F123D

triadic

#121A3D #3D121A #1A3D12

tetradic

#121A3D #3D122F #3D3512 #123D1F

square

#121A3D #3D122F #3D3512 #123D1F

split-complementary

#121A3D #3D1F12 #2F3D12

monochromatic

#070A18 #070A18 #121A3D #202E6C #2E429C

Accessibility & contrast

On white

16.92

#121A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#121A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121A3D

16.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121A3D	#FFFFFF	#000000	##FFFFFF
##121A3D	1.00	16.92	1.24	16.92
#FFFFFF	16.92	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071F3E

Deuteranopia (green-blind)

#021B3C

Tritanopia (blue-blind)

#002228

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #121a3d;
/* rgb */ color: rgb(18, 26, 61);
/* oklch */ color: oklch(23.3% 0.068 270.7);

Tailwind

colors: {
  custom: {
    50: '#555673',
    500: '#121a3d',
    950: '#000000',
  },
}

SCSS

$custom: #121a3d;
$custom-light: #555673;
$custom-dark: #000000;

JSON

{
  "hex": "#121a3d",
  "rgb": {
    "r": 18,
    "g": 26,
    "b": 61
  },
  "hsl": {
    "h": 228.837,
    "s": 54.43,
    "l": 15.49
  },
  "oklch": {
    "l": 0.23283,
    "c": 0.06773,
    "h": 270.7
  },
  "luminance": 0.01204
}

Semantic roles & 50–950 ramp

primary

#121A3D

secondary

#766A35

accent

#C24ADE

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #121A3D

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

Preview Lab → · Contrast checker → · Palette generator →