#12307D#12307D

#12307D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.1% C 0.136 H 264.2°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#12307D
RGB	rgb(18, 48, 125)
HSL	hsl(223, 75%, 28%)
HSV	hsv(223, 86%, 49%)
CMYK	cmyk(85.6%, 61.6%, 0%, 51%)
CIE-LAB	lab(22.73, 20.48, -46.63)
CIE-LCH	lch(22.73, 50.93, 293.71°)
OKLab	oklab(34.14% -0.0138 -0.1349)
OKLCH	oklch(34.14% 0.136 264.2)
XYZ	xyz(5.0068, 3.7226, 19.8527)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12307D #7D5F12

analogous

#12657D #12307D #2A127D

triadic

#12307D #7D1230 #307D12

tetradic

#12307D #7D1265 #7D5F12 #127D2A

square

#12307D #7D1265 #7D5F12 #127D2A

split-complementary

#12307D #7D2A12 #657D12

monochromatic

#040A1B #0A1B48 #12307D #1A45B2 #295DE0

Accessibility & contrast

On white

12.04

#12307D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#12307D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12307D

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12307D	#FFFFFF	#000000	##FFFFFF
##12307D	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B80

Deuteranopia (green-blind)

#00317C

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #12307d;
/* rgb */ color: rgb(18, 48, 125);
/* oklch */ color: oklch(34.1% 0.136 264.2);

Tailwind

colors: {
  custom: {
    50: '#6567a3',
    500: '#12307d',
    950: '#000000',
  },
}

SCSS

$custom: #12307d;
$custom-light: #6567a3;
$custom-dark: #000000;

JSON

{
  "hex": "#12307d",
  "rgb": {
    "r": 18,
    "g": 48,
    "b": 125
  },
  "hsl": {
    "h": 223.178,
    "s": 74.825,
    "l": 28.039
  },
  "oklch": {
    "l": 0.34143,
    "c": 0.13556,
    "h": 264.2
  },
  "luminance": 0.03723
}

Semantic roles & 50–950 ramp

primary

#12307D

secondary

#B39038

accent

#BD36F1

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12307D

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

Preview Lab → · Contrast checker → · Palette generator →