#121D2E#121D2E

#121D2E is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.0% C 0.037 H 258.8°. Best body text is #FFFFFF at 16.92:1 contrast (WCAG AA passes).

Color values

HEX	#121D2E
RGB	rgb(18, 29, 46)
HSL	hsl(216, 44%, 13%)
HSV	hsv(216, 61%, 18%)
CMYK	cmyk(60.9%, 37%, 0%, 82%)
CIE-LAB	lab(10.59, 1.22, -12.87)
CIE-LCH	lch(10.59, 12.92, 275.42°)
OKLab	oklab(22.95% -0.0071 -0.0361)
OKLCH	oklch(22.95% 0.037 258.8)
XYZ	xyz(1.1818, 1.2045, 2.7545)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D2E #2E2312

analogous

#122B2E #121D2E #15122E

triadic

#121D2E #2E121D #1D2E12

tetradic

#121D2E #2E122B #2E2312 #122E15

square

#121D2E #2E122B #2E2312 #122E15

split-complementary

#121D2E #2E1512 #2B2E12

monochromatic

#090E16 #090E16 #121D2E #23395A #345486

Accessibility & contrast

On white

16.92

#121D2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#121D2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D2E

16.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D2E	#FFFFFF	#000000	##FFFFFF
##121D2E	1.00	16.92	1.24	16.92
#FFFFFF	16.92	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161E2F

Deuteranopia (green-blind)

#131B2E

Tritanopia (blue-blind)

#062123

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #121d2e;
/* rgb */ color: rgb(18, 29, 46);
/* oklch */ color: oklch(23.0% 0.037 258.8);

Tailwind

colors: {
  custom: {
    50: '#525866',
    500: '#121d2e',
    950: '#000000',
  },
}

SCSS

$custom: #121d2e;
$custom-light: #525866;
$custom-dark: #000000;

JSON

{
  "hex": "#121d2e",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 46
  },
  "hsl": {
    "h": 216.429,
    "s": 43.75,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22951,
    "c": 0.03682,
    "h": 258.8
  },
  "luminance": 0.01205
}

Semantic roles & 50–950 ramp

primary

#121D2E

secondary

#665336

accent

#A254D3

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #121D2E

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

Preview Lab → · Contrast checker → · Palette generator →