#12255B#12255B

#12255B is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.6% C 0.100 H 265.7°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#12255B
RGB	rgb(18, 37, 91)
HSL	hsl(224, 67%, 21%)
HSV	hsv(224, 80%, 36%)
CMYK	cmyk(80.2%, 59.3%, 0%, 64.3%)
CIE-LAB	lab(16.54, 14.15, -34.66)
CIE-LCH	lch(16.54, 37.44, 292.21°)
OKLab	oklab(28.57% -0.0076 -0.0999)
OKLCH	oklch(28.57% 0.1 265.7)
XYZ	xyz(2.7987, 2.2068, 10.1739)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12255B #5B4812

analogous

#124A5B #12255B #24125B

triadic

#12255B #5B1225 #255B12

tetradic

#12255B #5B124A #5B4812 #125B24

square

#12255B #5B124A #5B4812 #125B24

split-complementary

#12255B #5B2412 #4A5B12

monochromatic

#050A1A #081028 #12255B #1C3A8E #264FC1

Accessibility & contrast

On white

14.57

#12255B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#12255B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12255B

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12255B	#FFFFFF	#000000	##FFFFFF
##12255B	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5D

Deuteranopia (green-blind)

#00265A

Tritanopia (blue-blind)

#00323C

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #12255b;
/* rgb */ color: rgb(18, 37, 91);
/* oklch */ color: oklch(28.6% 0.100 265.7);

Tailwind

colors: {
  custom: {
    50: '#5c5f8a',
    500: '#12255b',
    950: '#000000',
  },
}

SCSS

$custom: #12255b;
$custom-light: #5c5f8a;
$custom-dark: #000000;

JSON

{
  "hex": "#12255b",
  "rgb": {
    "r": 18,
    "g": 37,
    "b": 91
  },
  "hsl": {
    "h": 224.384,
    "s": 66.972,
    "l": 21.373
  },
  "oklch": {
    "l": 0.28565,
    "c": 0.10019,
    "h": 265.7
  },
  "luminance": 0.02207
}

Semantic roles & 50–950 ramp

primary

#12255B

secondary

#937B35

accent

#BD3EEA

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #12255B

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

Preview Lab → · Contrast checker → · Palette generator →