#15287D#15287D

#15287D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.6% C 0.145 H 267.3°. Best body text is #FFFFFF at 12.87:1 contrast (WCAG AA passes).

Color values

HEX	#15287D
RGB	rgb(21, 40, 125)
HSL	hsl(229, 71%, 29%)
HSV	hsv(229, 83%, 49%)
CMYK	cmyk(83.2%, 68%, 0%, 51%)
CIE-LAB	lab(20.66, 26.38, -50.01)
CIE-LCH	lch(20.66, 56.55, 297.81°)
OKLab	oklab(32.64% -0.0067 -0.1448)
OKLCH	oklch(32.64% 0.145 267.3)
XYZ	xyz(4.7684, 3.1571, 19.7561)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15287D #7D6A15

analogous

#155C7D #15287D #36157D

triadic

#15287D #7D1528 #287D15

tetradic

#15287D #7D155C #7D6A15 #157D36

square

#15287D #7D155C #7D6A15 #157D36

split-complementary

#15287D #7D3615 #5C7D15

monochromatic

#04081A #0C1749 #15287D #1E39B1 #3050DC

Accessibility & contrast

On white

12.87

#15287D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#15287D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15287D

12.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15287D	#FFFFFF	#000000	##FFFFFF
##15287D	1.00	12.87	1.63	12.87
#FFFFFF	12.87	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003780

Deuteranopia (green-blind)

#002D7B

Tritanopia (blue-blind)

#003F4E

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #15287d;
/* rgb */ color: rgb(21, 40, 125);
/* oklch */ color: oklch(32.6% 0.145 267.3);

Tailwind

colors: {
  custom: {
    50: '#6761a4',
    500: '#15287d',
    950: '#000000',
  },
}

SCSS

$custom: #15287d;
$custom-light: #6761a4;
$custom-dark: #000000;

JSON

{
  "hex": "#15287d",
  "rgb": {
    "r": 21,
    "g": 40,
    "b": 125
  },
  "hsl": {
    "h": 229.038,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.32641,
    "c": 0.14498,
    "h": 267.3
  },
  "luminance": 0.03158
}

Semantic roles & 50–950 ramp

primary

#15287D

secondary

#B29D3C

accent

#CD3AEE

background

#F6F5FA

surface

#EBEAF4

border

#C6C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #15287D

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

Preview Lab → · Contrast checker → · Palette generator →