#15288F#15288F

#15288F is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.5% C 0.169 H 267.3°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#15288F
RGB	rgb(21, 40, 143)
HSL	hsl(231, 74%, 32%)
HSV	hsv(231, 85%, 56%)
CMYK	cmyk(85.3%, 72%, 0%, 43.9%)
CIE-LAB	lab(22.51, 33.36, -58.27)
CIE-LCH	lch(22.51, 67.14, 299.79°)
OKLab	oklab(34.54% -0.008 -0.1689)
OKLCH	oklch(34.54% 0.169 267.3)
XYZ	xyz(6.0243, 3.6594, 26.3701)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15288F #8F7C15

analogous

#15658F #15288F #3F158F

triadic

#15288F #8F1528 #288F15

tetradic

#15288F #8F1565 #8F7C15 #158F3F

square

#15288F #8F1565 #8F7C15 #158F3F

split-complementary

#15288F #8F3F15 #658F15

monochromatic

#050A24 #0D195A #15288F #1D37C4 #3C56E2

Accessibility & contrast

On white

12.12

#15288F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#15288F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15288F

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15288F	#FFFFFF	#000000	##FFFFFF
##15288F	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C92

Deuteranopia (green-blind)

#00308D

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #15288f;
/* rgb */ color: rgb(21, 40, 143);
/* oklch */ color: oklch(34.5% 0.169 267.3);

Tailwind

colors: {
  custom: {
    50: '#6c62b1',
    500: '#15288f',
    950: '#000000',
  },
}

SCSS

$custom: #15288f;
$custom-light: #6c62b1;
$custom-dark: #000000;

JSON

{
  "hex": "#15288f",
  "rgb": {
    "r": 21,
    "g": 40,
    "b": 143
  },
  "hsl": {
    "h": 230.656,
    "s": 74.39,
    "l": 32.157
  },
  "oklch": {
    "l": 0.34545,
    "c": 0.16908,
    "h": 267.3
  },
  "luminance": 0.0366
}

Semantic roles & 50–950 ramp

primary

#15288F

secondary

#C2AD3E

accent

#D437F1

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #15288F

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

Preview Lab → · Contrast checker → · Palette generator →