#121C2D#121C2D

#121C2D is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.6% C 0.036 H 260.6°. Best body text is #FFFFFF at 17.08:1 contrast (WCAG AA passes).

Color values

HEX	#121C2D
RGB	rgb(18, 28, 45)
HSL	hsl(218, 43%, 12%)
HSV	hsv(218, 60%, 18%)
CMYK	cmyk(60%, 37.8%, 0%, 82.4%)
CIE-LAB	lab(10.17, 1.58, -12.79)
CIE-LCH	lch(10.17, 12.89, 277.05°)
OKLab	oklab(22.61% -0.0059 -0.0359)
OKLCH	oklch(22.61% 0.036 260.6)
XYZ	xyz(1.1382, 1.1485, 2.6438)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C2D #2D2312

analogous

#122A2D #121C2D #16122D

triadic

#121C2D #2D121C #1C2D12

tetradic

#121C2D #2D122A #2D2312 #122D16

square

#121C2D #2D122A #2D2312 #122D16

split-complementary

#121C2D #2D1612 #2A2D12

monochromatic

#090E16 #090E16 #121C2D #233759 #355284

Accessibility & contrast

On white

17.08

#121C2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#121C2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C2D

17.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C2D	#FFFFFF	#000000	##FFFFFF
##121C2D	1.00	17.08	1.23	17.08
#FFFFFF	17.08	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161D2E

Deuteranopia (green-blind)

#121B2D

Tritanopia (blue-blind)

#072022

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #121c2d;
/* rgb */ color: rgb(18, 28, 45);
/* oklch */ color: oklch(22.6% 0.036 260.6);

Tailwind

colors: {
  custom: {
    50: '#525766',
    500: '#121c2d',
    950: '#000000',
  },
}

SCSS

$custom: #121c2d;
$custom-light: #525766;
$custom-dark: #000000;

JSON

{
  "hex": "#121c2d",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 45
  },
  "hsl": {
    "h": 217.778,
    "s": 42.857,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22605,
    "c": 0.03639,
    "h": 260.6
  },
  "luminance": 0.01149
}

Semantic roles & 50–950 ramp

primary

#121C2D

secondary

#655336

accent

#A455D3

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #121C2D

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

Preview Lab → · Contrast checker → · Palette generator →