#12317E#12317E

#12317E is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.4% C 0.136 H 263.9°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#12317E
RGB	rgb(18, 49, 126)
HSL	hsl(223, 75%, 28%)
HSV	hsv(223, 86%, 49%)
CMYK	cmyk(85.7%, 61.1%, 0%, 50.6%)
CIE-LAB	lab(23.10, 20.18, -46.65)
CIE-LCH	lch(23.10, 50.83, 293.40°)
OKLab	oklab(34.45% -0.0144 -0.1349)
OKLCH	oklch(34.45% 0.136 263.9)
XYZ	xyz(5.1123, 3.8310, 20.2046)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12317E #7E5F12

analogous

#12677E #12317E #29127E

triadic

#12317E #7E1231 #317E12

tetradic

#12317E #7E1267 #7E5F12 #127E29

square

#12317E #7E1267 #7E5F12 #127E29

split-complementary

#12317E #7E2912 #677E12

monochromatic

#040A1B #0A1C48 #12317E #1A46B4 #2A5EE1

Accessibility & contrast

On white

11.89

#12317E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#12317E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12317E

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12317E	#FFFFFF	#000000	##FFFFFF
##12317E	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C81

Deuteranopia (green-blind)

#00327D

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #12317e;
/* rgb */ color: rgb(18, 49, 126);
/* oklch */ color: oklch(34.4% 0.136 263.9);

Tailwind

colors: {
  custom: {
    50: '#6568a4',
    500: '#12317e',
    950: '#000000',
  },
}

SCSS

$custom: #12317e;
$custom-light: #6568a4;
$custom-dark: #000000;

JSON

{
  "hex": "#12317e",
  "rgb": {
    "r": 18,
    "g": 49,
    "b": 126
  },
  "hsl": {
    "h": 222.778,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.34449,
    "c": 0.13568,
    "h": 263.9
  },
  "luminance": 0.03832
}

Semantic roles & 50–950 ramp

primary

#12317E

secondary

#B49038

accent

#BC36F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12317E

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

Preview Lab → · Contrast checker → · Palette generator →