#121C31#121C31

#121C31 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.9% C 0.043 H 264.0°. Best body text is #FFFFFF at 16.99:1 contrast (WCAG AA passes).

Color values

HEX	#121C31
RGB	rgb(18, 28, 49)
HSL	hsl(221, 46%, 13%)
HSV	hsv(221, 63%, 19%)
CMYK	cmyk(63.3%, 42.9%, 0%, 80.8%)
CIE-LAB	lab(10.41, 3.18, -15.32)
CIE-LCH	lch(10.41, 15.65, 281.71°)
OKLab	oklab(22.87% -0.0046 -0.0433)
OKLCH	oklch(22.87% 0.044 264)
XYZ	xyz(1.2189, 1.1808, 3.0688)
Luminance	0.0118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C31 #312712

analogous

#122B31 #121C31 #171231

triadic

#121C31 #31121C #1C3112

tetradic

#121C31 #31122B #312712 #123117

square

#121C31 #31122B #312712 #123117

split-complementary

#121C31 #311712 #2B3112

monochromatic

#080D16 #080D16 #121C31 #22365E #334F8B

Accessibility & contrast

On white

16.99

#121C31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#121C31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C31

16.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C31	#FFFFFF	#000000	##FFFFFF
##121C31	1.00	16.99	1.24	16.99
#FFFFFF	16.99	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141E32

Deuteranopia (green-blind)

#101B31

Tritanopia (blue-blind)

#042124

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #121c31;
/* rgb */ color: rgb(18, 28, 49);
/* oklch */ color: oklch(22.9% 0.043 264.0);

Tailwind

colors: {
  custom: {
    50: '#525769',
    500: '#121c31',
    950: '#000000',
  },
}

SCSS

$custom: #121c31;
$custom-light: #525769;
$custom-dark: #000000;

JSON

{
  "hex": "#121c31",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 49
  },
  "hsl": {
    "h": 220.645,
    "s": 46.269,
    "l": 13.137
  },
  "oklch": {
    "l": 0.22874,
    "c": 0.0435,
    "h": 264
  },
  "luminance": 0.01181
}

Semantic roles & 50–950 ramp

primary

#121C31

secondary

#695936

accent

#AB52D6

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #121C31

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

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