#121B2A#121B2A

#121B2A is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.1% C 0.032 H 260.3°. Best body text is #FFFFFF at 17.27:1 contrast (WCAG AA passes).

Color values

HEX	#121B2A
RGB	rgb(18, 27, 42)
HSL	hsl(218, 40%, 12%)
HSV	hsv(218, 57%, 16%)
CMYK	cmyk(57.1%, 35.7%, 0%, 83.5%)
CIE-LAB	lab(9.64, 1.17, -11.42)
CIE-LCH	lch(9.64, 11.48, 275.87°)
OKLab	oklab(22.13% -0.0054 -0.032)
OKLCH	oklch(22.13% 0.032 260.3)
XYZ	xyz(1.0592, 1.0796, 2.3426)
Luminance	0.0108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B2A #2A2112

analogous

#12272A #121B2A #15122A

triadic

#121B2A #2A121B #1B2A12

tetradic

#121B2A #2A1227 #2A2112 #122A15

square

#121B2A #2A1227 #2A2112 #122A15

split-complementary

#121B2A #2A1512 #272A12

monochromatic

#090E15 #090E15 #121B2A #243755 #375280

Accessibility & contrast

On white

17.27

#121B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#121B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B2A

17.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B2A	#FFFFFF	#000000	##FFFFFF
##121B2A	1.00	17.27	1.22	17.27
#FFFFFF	17.27	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151C2B

Deuteranopia (green-blind)

#131A2A

Tritanopia (blue-blind)

#091E20

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #121b2a;
/* rgb */ color: rgb(18, 27, 42);
/* oklch */ color: oklch(22.1% 0.032 260.3);

Tailwind

colors: {
  custom: {
    50: '#515763',
    500: '#121b2a',
    950: '#000000',
  },
}

SCSS

$custom: #121b2a;
$custom-light: #515763;
$custom-dark: #000000;

JSON

{
  "hex": "#121b2a",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 42
  },
  "hsl": {
    "h": 217.5,
    "s": 40,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22131,
    "c": 0.03242,
    "h": 260.3
  },
  "luminance": 0.0108
}

Semantic roles & 50–950 ramp

primary

#121B2A

secondary

#615137

accent

#A358D0

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #121B2A

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

Preview Lab → · Contrast checker → · Palette generator →