#12287E#12287E

#12287E is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.6% C 0.147 H 266.4°. Best body text is #FFFFFF at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#12287E
RGB	rgb(18, 40, 126)
HSL	hsl(228, 75%, 28%)
HSV	hsv(228, 86%, 49%)
CMYK	cmyk(85.7%, 68.3%, 0%, 50.6%)
CIE-LAB	lab(20.64, 26.52, -50.69)
CIE-LCH	lch(20.64, 57.21, 297.62°)
OKLab	oklab(32.62% -0.0093 -0.1468)
OKLCH	oklch(32.62% 0.147 266.4)
XYZ	xyz(4.7728, 3.1520, 20.0915)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12287E #7E6812

analogous

#125E7E #12287E #32127E

triadic

#12287E #7E1228 #287E12

tetradic

#12287E #7E125E #7E6812 #127E32

square

#12287E #7E125E #7E6812 #127E32

split-complementary

#12287E #7E3212 #5E7E12

monochromatic

#04081B #0A1748 #12287E #1A39B4 #2A4FE1

Accessibility & contrast

On white

12.88

#12287E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#12287E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12287E

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12287E	#FFFFFF	#000000	##FFFFFF
##12287E	1.00	12.88	1.63	12.88
#FFFFFF	12.88	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003781

Deuteranopia (green-blind)

#002D7C

Tritanopia (blue-blind)

#003F4F

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #12287e;
/* rgb */ color: rgb(18, 40, 126);
/* oklch */ color: oklch(32.6% 0.147 266.4);

Tailwind

colors: {
  custom: {
    50: '#6661a4',
    500: '#12287e',
    950: '#000000',
  },
}

SCSS

$custom: #12287e;
$custom-light: #6661a4;
$custom-dark: #000000;

JSON

{
  "hex": "#12287e",
  "rgb": {
    "r": 18,
    "g": 40,
    "b": 126
  },
  "hsl": {
    "h": 227.778,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.32623,
    "c": 0.14713,
    "h": 266.4
  },
  "luminance": 0.03153
}

Semantic roles & 50–950 ramp

primary

#12287E

secondary

#B49B38

accent

#CB36F2

background

#F6F5FA

surface

#EBEAF4

border

#C6C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #12287E

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

Preview Lab → · Contrast checker → · Palette generator →