#121B28#121B28

#121B28 is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.0% C 0.029 H 257.5°. Best body text is #FFFFFF at 17.31:1 contrast (WCAG AA passes).

Color values

HEX	#121B28
RGB	rgb(18, 27, 40)
HSL	hsl(215, 38%, 11%)
HSV	hsv(215, 55%, 16%)
CMYK	cmyk(55%, 32.5%, 0%, 84.3%)
CIE-LAB	lab(9.53, 0.41, -10.12)
CIE-LCH	lch(9.53, 10.13, 272.34°)
OKLab	oklab(22.01% -0.0062 -0.0282)
OKLCH	oklch(22.01% 0.029 257.5)
XYZ	xyz(1.0243, 1.0656, 2.1588)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B28 #281F12

analogous

#122628 #121B28 #141228

triadic

#121B28 #28121B #1B2812

tetradic

#121B28 #281226 #281F12 #122814

square

#121B28 #281226 #281F12 #122814

split-complementary

#121B28 #281412 #262812

monochromatic

#090E15 #090E15 #121B28 #253752 #38547C

Accessibility & contrast

On white

17.31

#121B28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#121B28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B28

17.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B28	#FFFFFF	#000000	##FFFFFF
##121B28	1.00	17.31	1.21	17.31
#FFFFFF	17.31	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161C29

Deuteranopia (green-blind)

#141A28

Tritanopia (blue-blind)

#0A1E1F

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #121b28;
/* rgb */ color: rgb(18, 27, 40);
/* oklch */ color: oklch(22.0% 0.029 257.5);

Tailwind

colors: {
  custom: {
    50: '#515762',
    500: '#121b28',
    950: '#000000',
  },
}

SCSS

$custom: #121b28;
$custom-light: #515762;
$custom-dark: #000000;

JSON

{
  "hex": "#121b28",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 40
  },
  "hsl": {
    "h": 215.455,
    "s": 37.931,
    "l": 11.373
  },
  "oklch": {
    "l": 0.22008,
    "c": 0.02889,
    "h": 257.5
  },
  "luminance": 0.01066
}

Semantic roles & 50–950 ramp

primary

#121B28

secondary

#5F4F37

accent

#9E5ACE

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #121B28

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

Preview Lab → · Contrast checker → · Palette generator →