#15288E#15288E

#15288E is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.4% C 0.168 H 267.3°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#15288E
RGB	rgb(21, 40, 142)
HSL	hsl(231, 74%, 32%)
HSV	hsv(231, 85%, 56%)
CMYK	cmyk(85.2%, 71.8%, 0%, 44.3%)
CIE-LAB	lab(22.41, 32.98, -57.82)
CIE-LCH	lch(22.41, 66.56, 299.70°)
OKLab	oklab(34.44% -0.0079 -0.1676)
OKLCH	oklch(34.44% 0.168 267.3)
XYZ	xyz(5.9488, 3.6293, 25.9729)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15288E #8E7B15

analogous

#15648E #15288E #3F158E

triadic

#15288E #8E1528 #288E15

tetradic

#15288E #8E1564 #8E7B15 #158E3F

square

#15288E #8E1564 #8E7B15 #158E3F

split-complementary

#15288E #8E3F15 #648E15

monochromatic

#050A23 #0D1959 #15288E #1D37C3 #3B56E2

Accessibility & contrast

On white

12.17

#15288E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#15288E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15288E

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15288E	#FFFFFF	#000000	##FFFFFF
##15288E	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B91

Deuteranopia (green-blind)

#00308C

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #15288e;
/* rgb */ color: rgb(21, 40, 142);
/* oklch */ color: oklch(34.4% 0.168 267.3);

Tailwind

colors: {
  custom: {
    50: '#6c62b0',
    500: '#15288e',
    950: '#000000',
  },
}

SCSS

$custom: #15288e;
$custom-light: #6c62b0;
$custom-dark: #000000;

JSON

{
  "hex": "#15288e",
  "rgb": {
    "r": 21,
    "g": 40,
    "b": 142
  },
  "hsl": {
    "h": 230.579,
    "s": 74.233,
    "l": 31.961
  },
  "oklch": {
    "l": 0.34437,
    "c": 0.16778,
    "h": 267.3
  },
  "luminance": 0.0363
}

Semantic roles & 50–950 ramp

primary

#15288E

secondary

#C2AD3D

accent

#D437F1

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #15288E

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

Preview Lab → · Contrast checker → · Palette generator →