#121C2F#121C2F

#121C2F is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.7% C 0.040 H 262.5°. Best body text is #FFFFFF at 17.03:1 contrast (WCAG AA passes).

Color values

HEX	#121C2F
RGB	rgb(18, 28, 47)
HSL	hsl(219, 45%, 13%)
HSV	hsv(219, 62%, 18%)
CMYK	cmyk(61.7%, 40.4%, 0%, 81.6%)
CIE-LAB	lab(10.29, 2.37, -14.06)
CIE-LCH	lch(10.29, 14.26, 279.58°)
OKLab	oklab(22.74% -0.0052 -0.0396)
OKLCH	oklch(22.74% 0.04 262.5)
XYZ	xyz(1.1776, 1.1643, 2.8514)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C2F #2F2512

analogous

#122A2F #121C2F #16122F

triadic

#121C2F #2F121C #1C2F12

tetradic

#121C2F #2F122A #2F2512 #122F16

square

#121C2F #2F122A #2F2512 #122F16

split-complementary

#121C2F #2F1612 #2A2F12

monochromatic

#080D16 #080D16 #121C2F #23365B #345188

Accessibility & contrast

On white

17.03

#121C2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#121C2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C2F

17.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C2F	#FFFFFF	#000000	##FFFFFF
##121C2F	1.00	17.03	1.23	17.03
#FFFFFF	17.03	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151E30

Deuteranopia (green-blind)

#111B2F

Tritanopia (blue-blind)

#052023

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #121c2f;
/* rgb */ color: rgb(18, 28, 47);
/* oklch */ color: oklch(22.7% 0.040 262.5);

Tailwind

colors: {
  custom: {
    50: '#525767',
    500: '#121c2f',
    950: '#000000',
  },
}

SCSS

$custom: #121c2f;
$custom-light: #525767;
$custom-dark: #000000;

JSON

{
  "hex": "#121c2f",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 47
  },
  "hsl": {
    "h": 219.31,
    "s": 44.615,
    "l": 12.745
  },
  "oklch": {
    "l": 0.22737,
    "c": 0.03994,
    "h": 262.5
  },
  "luminance": 0.01164
}

Semantic roles & 50–950 ramp

primary

#121C2F

secondary

#675636

accent

#A853D4

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #121C2F

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

Preview Lab → · Contrast checker → · Palette generator →