#121A3E#121A3E

#121A3E is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.4% C 0.069 H 270.7°. Best body text is #FFFFFF at 16.89:1 contrast (WCAG AA passes).

Color values

HEX	#121A3E
RGB	rgb(18, 26, 62)
HSL	hsl(229, 55%, 16%)
HSV	hsv(229, 71%, 24%)
CMYK	cmyk(71%, 58.1%, 0%, 75.7%)
CIE-LAB	lab(10.67, 10.13, -24.24)
CIE-LCH	lch(10.67, 26.27, 292.69°)
OKLab	oklab(23.37% 0.0009 -0.0694)
OKLCH	oklch(23.37% 0.069 270.7)
XYZ	xyz(1.4881, 1.2151, 4.7126)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121A3E #3E3612

analogous

#12303E #121A3E #20123E

triadic

#121A3E #3E121A #1A3E12

tetradic

#121A3E #3E1230 #3E3612 #123E20

square

#121A3E #3E1230 #3E3612 #123E20

split-complementary

#121A3E #3E2012 #303E12

monochromatic

#070A18 #070A18 #121A3E #202E6D #2E429D

Accessibility & contrast

On white

16.89

#121A3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#121A3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121A3E

16.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121A3E	#FFFFFF	#000000	##FFFFFF
##121A3E	1.00	16.89	1.24	16.89
#FFFFFF	16.89	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061F3F

Deuteranopia (green-blind)

#001B3D

Tritanopia (blue-blind)

#002229

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #121a3e;
/* rgb */ color: rgb(18, 26, 62);
/* oklch */ color: oklch(23.4% 0.069 270.7);

Tailwind

colors: {
  custom: {
    50: '#555673',
    500: '#121a3e',
    950: '#000000',
  },
}

SCSS

$custom: #121a3e;
$custom-light: #555673;
$custom-dark: #000000;

JSON

{
  "hex": "#121a3e",
  "rgb": {
    "r": 18,
    "g": 26,
    "b": 62
  },
  "hsl": {
    "h": 229.091,
    "s": 55,
    "l": 15.686
  },
  "oklch": {
    "l": 0.23369,
    "c": 0.06945,
    "h": 270.7
  },
  "luminance": 0.01215
}

Semantic roles & 50–950 ramp

primary

#121A3E

secondary

#776B35

accent

#C349DE

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #121A3E

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

Preview Lab → · Contrast checker → · Palette generator →