#28187F#28187F

#28187F is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.160 H 279.0°. Best body text is #FFFFFF at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#28187F
RGB	rgb(40, 24, 127)
HSL	hsl(249, 68%, 30%)
HSV	hsv(249, 81%, 50%)
CMYK	cmyk(68.5%, 81.1%, 0%, 50.2%)
CIE-LAB	lab(18.52, 38.93, -54.77)
CIE-LCH	lch(18.52, 67.19, 305.40°)
OKLab	oklab(31.49% 0.025 -0.1582)
OKLCH	oklch(31.49% 0.16 279)
XYZ	xyz(5.0312, 2.6363, 20.3183)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28187F #6F7F18

analogous

#183C7F #28187F #5B187F

triadic

#28187F #7F2818 #187F28

tetradic

#28187F #7F183C #6F7F18 #187F5B

square

#28187F #7F183C #6F7F18 #187F5B

split-complementary

#28187F #7F5B18 #3C7F18

monochromatic

#08051A #180E4C #28187F #3822B2 #5138D9

Accessibility & contrast

On white

13.75

#28187F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#28187F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28187F

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28187F	#FFFFFF	#000000	##FFFFFF
##28187F	1.00	13.75	1.53	13.75
#FFFFFF	13.75	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003182

Deuteranopia (green-blind)

#00297D

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #28187f;
/* rgb */ color: rgb(40, 24, 127);
/* oklch */ color: oklch(31.5% 0.160 279.0);

Tailwind

colors: {
  custom: {
    50: '#7058a5',
    500: '#28187f',
    950: '#000000',
  },
}

SCSS

$custom: #28187f;
$custom-light: #7058a5;
$custom-dark: #000000;

JSON

{
  "hex": "#28187f",
  "rgb": {
    "r": 40,
    "g": 24,
    "b": 127
  },
  "hsl": {
    "h": 249.32,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.31492,
    "c": 0.16012,
    "h": 279
  },
  "luminance": 0.02637
}

Semantic roles & 50–950 ramp

primary

#28187F

secondary

#A1B33F

accent

#EB3DD0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #28187F

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

Preview Lab → · Contrast checker → · Palette generator →