#121B2F#121B2F

#121B2F is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.5% C 0.041 H 264.9°. Best body text is #FFFFFF at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#121B2F
RGB	rgb(18, 27, 47)
HSL	hsl(221, 45%, 13%)
HSV	hsv(221, 62%, 18%)
CMYK	cmyk(61.7%, 42.6%, 0%, 81.6%)
CIE-LAB	lab(9.94, 3.14, -14.62)
CIE-LCH	lch(9.94, 14.96, 282.12°)
OKLab	oklab(22.46% -0.0037 -0.0412)
OKLCH	oklch(22.46% 0.041 264.9)
XYZ	xyz(1.1543, 1.1176, 2.8437)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B2F #2F2612

analogous

#12292F #121B2F #17122F

triadic

#121B2F #2F121B #1B2F12

tetradic

#121B2F #2F1229 #2F2612 #122F17

square

#121B2F #2F1229 #2F2612 #122F17

split-complementary

#121B2F #2F1712 #292F12

monochromatic

#080D16 #080D16 #121B2F #23345B #344E88

Accessibility & contrast

On white

17.16

#121B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#121B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B2F

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B2F	#FFFFFF	#000000	##FFFFFF
##121B2F	1.00	17.16	1.22	17.16
#FFFFFF	17.16	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131D30

Deuteranopia (green-blind)

#101A2F

Tritanopia (blue-blind)

#061F22

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #121b2f;
/* rgb */ color: rgb(18, 27, 47);
/* oklch */ color: oklch(22.5% 0.041 264.9);

Tailwind

colors: {
  custom: {
    50: '#525767',
    500: '#121b2f',
    950: '#000000',
  },
}

SCSS

$custom: #121b2f;
$custom-light: #525767;
$custom-dark: #000000;

JSON

{
  "hex": "#121b2f",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 47
  },
  "hsl": {
    "h": 221.379,
    "s": 44.615,
    "l": 12.745
  },
  "oklch": {
    "l": 0.22461,
    "c": 0.0414,
    "h": 264.9
  },
  "luminance": 0.01118
}

Semantic roles & 50–950 ramp

primary

#121B2F

secondary

#675836

accent

#AC53D4

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #121B2F

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

Preview Lab → · Contrast checker → · Palette generator →