#12275B#12275B

#12275B is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.0% C 0.097 H 264.5°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#12275B
RGB	rgb(18, 39, 91)
HSL	hsl(223, 67%, 21%)
HSV	hsv(223, 80%, 36%)
CMYK	cmyk(80.2%, 57.1%, 0%, 64.3%)
CIE-LAB	lab(17.15, 12.66, -33.66)
CIE-LCH	lch(17.15, 35.96, 290.61°)
OKLab	oklab(29.03% -0.0093 -0.0969)
OKLCH	oklch(29.03% 0.097 264.5)
XYZ	xyz(2.8626, 2.3347, 10.1953)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12275B #5B4612

analogous

#124C5B #12275B #22125B

triadic

#12275B #5B1227 #275B12

tetradic

#12275B #5B124C #5B4612 #125B22

square

#12275B #5B124C #5B4612 #125B22

split-complementary

#12275B #5B2212 #4C5B12

monochromatic

#050B1A #081128 #12275B #1C3D8E #2653C1

Accessibility & contrast

On white

14.31

#12275B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#12275B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12275B

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12275B	#FFFFFF	#000000	##FFFFFF
##12275B	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#032E5D

Deuteranopia (green-blind)

#00275A

Tritanopia (blue-blind)

#00343C

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #12275b;
/* rgb */ color: rgb(18, 39, 91);
/* oklch */ color: oklch(29.0% 0.097 264.5);

Tailwind

colors: {
  custom: {
    50: '#5c608a',
    500: '#12275b',
    950: '#000000',
  },
}

SCSS

$custom: #12275b;
$custom-light: #5c608a;
$custom-dark: #000000;

JSON

{
  "hex": "#12275b",
  "rgb": {
    "r": 18,
    "g": 39,
    "b": 91
  },
  "hsl": {
    "h": 222.74,
    "s": 66.972,
    "l": 21.373
  },
  "oklch": {
    "l": 0.29031,
    "c": 0.09737,
    "h": 264.5
  },
  "luminance": 0.02335
}

Semantic roles & 50–950 ramp

primary

#12275B

secondary

#937835

accent

#B83EEA

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #12275B

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

Preview Lab → · Contrast checker → · Palette generator →