#12317F#12317F

#12317F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.5% C 0.137 H 264.0°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#12317F
RGB	rgb(18, 49, 127)
HSL	hsl(223, 75%, 28%)
HSV	hsv(223, 86%, 50%)
CMYK	cmyk(85.8%, 61.4%, 0%, 50.2%)
CIE-LAB	lab(23.19, 20.60, -47.14)
CIE-LCH	lch(23.19, 51.45, 293.61°)
OKLab	oklab(34.54% -0.0143 -0.1363)
OKLCH	oklch(34.54% 0.137 264)
XYZ	xyz(5.1772, 3.8569, 20.5462)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12317F #7F6012

analogous

#12677F #12317F #2A127F

triadic

#12317F #7F1231 #317F12

tetradic

#12317F #7F1267 #7F6012 #127F2A

square

#12317F #7F1267 #7F6012 #127F2A

split-complementary

#12317F #7F2A12 #677F12

monochromatic

#040A1B #0A1C49 #12317F #1A46B5 #2B5EE1

Accessibility & contrast

On white

11.85

#12317F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#12317F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12317F

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12317F	#FFFFFF	#000000	##FFFFFF
##12317F	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C82

Deuteranopia (green-blind)

#00327E

Tritanopia (blue-blind)

#004553

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #12317f;
/* rgb */ color: rgb(18, 49, 127);
/* oklch */ color: oklch(34.5% 0.137 264.0);

Tailwind

colors: {
  custom: {
    50: '#6668a5',
    500: '#12317f',
    950: '#000000',
  },
}

SCSS

$custom: #12317f;
$custom-light: #6668a5;
$custom-dark: #000000;

JSON

{
  "hex": "#12317f",
  "rgb": {
    "r": 18,
    "g": 49,
    "b": 127
  },
  "hsl": {
    "h": 222.936,
    "s": 75.172,
    "l": 28.431
  },
  "oklch": {
    "l": 0.34542,
    "c": 0.1371,
    "h": 264
  },
  "luminance": 0.03858
}

Semantic roles & 50–950 ramp

primary

#12317F

secondary

#B59138

accent

#BC36F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12317F

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

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