#12317B#12317B

#12317B is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.2% C 0.131 H 263.7°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#12317B
RGB	rgb(18, 49, 123)
HSL	hsl(222, 74%, 28%)
HSV	hsv(222, 85%, 48%)
CMYK	cmyk(85.4%, 60.2%, 0%, 51.8%)
CIE-LAB	lab(22.84, 18.93, -45.18)
CIE-LCH	lch(22.84, 48.99, 292.74°)
OKLab	oklab(34.17% -0.0145 -0.1306)
OKLCH	oklch(34.17% 0.131 263.7)
XYZ	xyz(4.9216, 3.7547, 19.2004)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12317B #7B5C12

analogous

#12657B #12317B #28127B

triadic

#12317B #7B1231 #317B12

tetradic

#12317B #7B1265 #7B5C12 #127B28

square

#12317B #7B1265 #7B5C12 #127B28

split-complementary

#12317B #7B2812 #657B12

monochromatic

#040B1B #0A1C46 #12317B #1A46B0 #285EE0

Accessibility & contrast

On white

11.99

#12317B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#12317B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12317B

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12317B	#FFFFFF	#000000	##FFFFFF
##12317B	1.00	11.99	1.75	11.99
#FFFFFF	11.99	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7E

Deuteranopia (green-blind)

#00327A

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #12317b;
/* rgb */ color: rgb(18, 49, 123);
/* oklch */ color: oklch(34.2% 0.131 263.7);

Tailwind

colors: {
  custom: {
    50: '#6468a2',
    500: '#12317b',
    950: '#000000',
  },
}

SCSS

$custom: #12317b;
$custom-light: #6468a2;
$custom-dark: #000000;

JSON

{
  "hex": "#12317b",
  "rgb": {
    "r": 18,
    "g": 49,
    "b": 123
  },
  "hsl": {
    "h": 222.286,
    "s": 74.468,
    "l": 27.647
  },
  "oklch": {
    "l": 0.34172,
    "c": 0.1314,
    "h": 263.7
  },
  "luminance": 0.03755
}

Semantic roles & 50–950 ramp

primary

#12317B

secondary

#B18D38

accent

#BA37F1

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#06060F

muted

#7A7A7F

Preview Lab

Preview with #12317B

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

Preview Lab → · Contrast checker → · Palette generator →