#121A2B#121A2B

#121A2B is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.9% C 0.036 H 264.4°. Best body text is #FFFFFF at 17.38:1 contrast (WCAG AA passes).

Color values

HEX	#121A2B
RGB	rgb(18, 26, 43)
HSL	hsl(221, 41%, 12%)
HSV	hsv(221, 58%, 17%)
CMYK	cmyk(58.1%, 39.5%, 0%, 83.1%)
CIE-LAB	lab(9.33, 2.33, -12.63)
CIE-LCH	lch(9.33, 12.85, 280.44°)
OKLab	oklab(21.91% -0.0035 -0.0355)
OKLCH	oklch(21.91% 0.036 264.4)
XYZ	xyz(1.0548, 1.0417, 2.4305)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121A2B #2B2312

analogous

#12272B #121A2B #17122B

triadic

#121A2B #2B121A #1A2B12

tetradic

#121A2B #2B1227 #2B2312 #122B17

square

#121A2B #2B1227 #2B2312 #122B17

split-complementary

#121A2B #2B1712 #272B12

monochromatic

#090D16 #090D16 #121A2B #243456 #364E81

Accessibility & contrast

On white

17.38

#121A2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#121A2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121A2B

17.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121A2B	#FFFFFF	#000000	##FFFFFF
##121A2B	1.00	17.38	1.21	17.38
#FFFFFF	17.38	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141B2C

Deuteranopia (green-blind)

#11192B

Tritanopia (blue-blind)

#081E20

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #121a2b;
/* rgb */ color: rgb(18, 26, 43);
/* oklch */ color: oklch(21.9% 0.036 264.4);

Tailwind

colors: {
  custom: {
    50: '#515664',
    500: '#121a2b',
    950: '#000000',
  },
}

SCSS

$custom: #121a2b;
$custom-light: #515664;
$custom-dark: #000000;

JSON

{
  "hex": "#121a2b",
  "rgb": {
    "r": 18,
    "g": 26,
    "b": 43
  },
  "hsl": {
    "h": 220.8,
    "s": 40.984,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21914,
    "c": 0.03563,
    "h": 264.4
  },
  "luminance": 0.01042
}

Semantic roles & 50–950 ramp

primary

#121A2B

secondary

#625436

accent

#AA57D1

background

#F4F5F6

surface

#E7E8EB

border

#C3C4C6

text

#020305

muted

#78787A

Preview Lab

Preview with #121A2B

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

Preview Lab → · Contrast checker → · Palette generator →