#12337F#12337F

#12337F is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.0% C 0.134 H 263.3°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#12337F
RGB	rgb(18, 51, 127)
HSL	hsl(222, 75%, 28%)
HSV	hsv(222, 86%, 50%)
CMYK	cmyk(85.8%, 59.8%, 0%, 50.2%)
CIE-LAB	lab(23.76, 19.18, -46.21)
CIE-LCH	lch(23.76, 50.03, 292.54°)
OKLab	oklab(34.97% -0.0156 -0.1336)
OKLCH	oklch(34.97% 0.134 263.3)
XYZ	xyz(5.2627, 4.0279, 20.5747)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12337F #7F5E12

analogous

#12697F #12337F #27127F

triadic

#12337F #7F1233 #337F12

tetradic

#12337F #7F1269 #7F5E12 #127F27

square

#12337F #7F1269 #7F5E12 #127F27

split-complementary

#12337F #7F2712 #697F12

monochromatic

#040B1B #0A1D49 #12337F #1A49B5 #2B62E1

Accessibility & contrast

On white

11.63

#12337F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#12337F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12337F

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12337F	#FFFFFF	#000000	##FFFFFF
##12337F	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E82

Deuteranopia (green-blind)

#00347E

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #12337f;
/* rgb */ color: rgb(18, 51, 127);
/* oklch */ color: oklch(35.0% 0.134 263.3);

Tailwind

colors: {
  custom: {
    50: '#656aa5',
    500: '#12337f',
    950: '#000000',
  },
}

SCSS

$custom: #12337f;
$custom-light: #656aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#12337f",
  "rgb": {
    "r": 18,
    "g": 51,
    "b": 127
  },
  "hsl": {
    "h": 221.835,
    "s": 75.172,
    "l": 28.431
  },
  "oklch": {
    "l": 0.3497,
    "c": 0.13449,
    "h": 263.3
  },
  "luminance": 0.04029
}

Semantic roles & 50–950 ramp

primary

#12337F

secondary

#B58F38

accent

#B936F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12337F

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

Preview Lab → · Contrast checker → · Palette generator →