#121B33#121B33

#121B33 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.7% C 0.049 H 267.0°. Best body text is #FFFFFF at 17.07:1 contrast (WCAG AA passes).

Color values

HEX	#121B33
RGB	rgb(18, 27, 51)
HSL	hsl(224, 48%, 14%)
HSV	hsv(224, 65%, 20%)
CMYK	cmyk(64.7%, 47.1%, 0%, 80%)
CIE-LAB	lab(10.19, 4.76, -17.12)
CIE-LCH	lch(10.19, 17.77, 285.54°)
OKLab	oklab(22.75% -0.0025 -0.0485)
OKLCH	oklch(22.75% 0.049 267)
XYZ	xyz(1.2387, 1.1514, 3.2883)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B33 #332A12

analogous

#122B33 #121B33 #191233

triadic

#121B33 #33121B #1B3312

tetradic

#121B33 #33122B #332A12 #123319

square

#121B33 #33122B #332A12 #123319

split-complementary

#121B33 #331912 #2B3312

monochromatic

#080C17 #080C17 #121B33 #223360 #324B8D

Accessibility & contrast

On white

17.07

#121B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#121B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B33

17.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B33	#FFFFFF	#000000	##FFFFFF
##121B33	1.00	17.07	1.23	17.07
#FFFFFF	17.07	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#111D34

Deuteranopia (green-blind)

#0D1A32

Tritanopia (blue-blind)

#032024

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #121b33;
/* rgb */ color: rgb(18, 27, 51);
/* oklch */ color: oklch(22.7% 0.049 267.0);

Tailwind

colors: {
  custom: {
    50: '#53566b',
    500: '#121b33',
    950: '#000000',
  },
}

SCSS

$custom: #121b33;
$custom-light: #53566b;
$custom-dark: #000000;

JSON

{
  "hex": "#121b33",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 51
  },
  "hsl": {
    "h": 223.636,
    "s": 47.826,
    "l": 13.529
  },
  "oklch": {
    "l": 0.22745,
    "c": 0.04859,
    "h": 267
  },
  "luminance": 0.01151
}

Semantic roles & 50–950 ramp

primary

#121B33

secondary

#6B5D35

accent

#B350D7

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #121B33

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

Preview Lab → · Contrast checker → · Palette generator →