#12337E#12337E

#12337E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.133 H 263.2°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#12337E
RGB	rgb(18, 51, 126)
HSL	hsl(222, 75%, 28%)
HSV	hsv(222, 86%, 49%)
CMYK	cmyk(85.7%, 59.5%, 0%, 50.6%)
CIE-LAB	lab(23.68, 18.76, -45.72)
CIE-LCH	lch(23.68, 49.42, 292.31°)
OKLab	oklab(34.88% -0.0156 -0.1321)
OKLCH	oklch(34.88% 0.133 263.2)
XYZ	xyz(5.1978, 4.0020, 20.2331)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12337E #7E5D12

analogous

#12697E #12337E #27127E

triadic

#12337E #7E1233 #337E12

tetradic

#12337E #7E1269 #7E5D12 #127E27

square

#12337E #7E1269 #7E5D12 #127E27

split-complementary

#12337E #7E2712 #697E12

monochromatic

#040B1B #0A1D48 #12337E #1A49B4 #2A62E1

Accessibility & contrast

On white

11.66

#12337E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#12337E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12337E

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12337E	#FFFFFF	#000000	##FFFFFF
##12337E	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00347D

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #12337e;
/* rgb */ color: rgb(18, 51, 126);
/* oklch */ color: oklch(34.9% 0.133 263.2);

Tailwind

colors: {
  custom: {
    50: '#656aa4',
    500: '#12337e',
    950: '#000000',
  },
}

SCSS

$custom: #12337e;
$custom-light: #656aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#12337e",
  "rgb": {
    "r": 18,
    "g": 51,
    "b": 126
  },
  "hsl": {
    "h": 221.667,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.34879,
    "c": 0.13306,
    "h": 263.2
  },
  "luminance": 0.04003
}

Semantic roles & 50–950 ramp

primary

#12337E

secondary

#B48E38

accent

#B836F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12337E

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

Preview Lab → · Contrast checker → · Palette generator →