#12317C#12317C

#12317C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.3% C 0.133 H 263.8°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#12317C
RGB	rgb(18, 49, 124)
HSL	hsl(222, 75%, 28%)
HSV	hsv(222, 85%, 49%)
CMYK	cmyk(85.5%, 60.5%, 0%, 51.4%)
CIE-LAB	lab(22.93, 19.35, -45.67)
CIE-LCH	lch(22.93, 49.61, 292.96°)
OKLab	oklab(34.26% -0.0144 -0.132)
OKLCH	oklch(34.26% 0.133 263.8)
XYZ	xyz(4.9846, 3.7799, 19.5317)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12317C #7C5D12

analogous

#12667C #12317C #28127C

triadic

#12317C #7C1231 #317C12

tetradic

#12317C #7C1266 #7C5D12 #127C28

square

#12317C #7C1266 #7C5D12 #127C28

split-complementary

#12317C #7C2812 #667C12

monochromatic

#040B1B #0A1C47 #12317C #1A46B1 #295EE0

Accessibility & contrast

On white

11.96

#12317C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#12317C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12317C

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12317C	#FFFFFF	#000000	##FFFFFF
##12317C	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7F

Deuteranopia (green-blind)

#00327B

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #12317c;
/* rgb */ color: rgb(18, 49, 124);
/* oklch */ color: oklch(34.3% 0.133 263.8);

Tailwind

colors: {
  custom: {
    50: '#6568a3',
    500: '#12317c',
    950: '#000000',
  },
}

SCSS

$custom: #12317c;
$custom-light: #6568a3;
$custom-dark: #000000;

JSON

{
  "hex": "#12317c",
  "rgb": {
    "r": 18,
    "g": 49,
    "b": 124
  },
  "hsl": {
    "h": 222.453,
    "s": 74.648,
    "l": 27.843
  },
  "oklch": {
    "l": 0.34264,
    "c": 0.13283,
    "h": 263.8
  },
  "luminance": 0.0378
}

Semantic roles & 50–950 ramp

primary

#12317C

secondary

#B28E38

accent

#BB37F1

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12317C

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

Preview Lab → · Contrast checker → · Palette generator →