#28289D#28289D

#28289D is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.0% C 0.182 H 273.0°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#28289D
RGB	rgb(40, 40, 157)
HSL	hsl(240, 59%, 39%)
HSV	hsv(240, 75%, 62%)
CMYK	cmyk(74.5%, 74.5%, 0%, 38.4%)
CIE-LAB	lab(24.96, 39.97, -62.82)
CIE-LCH	lch(24.96, 74.45, 302.47°)
OKLab	oklab(37% 0.0096 -0.1817)
OKLCH	oklch(37% 0.182 273)
XYZ	xyz(7.7176, 4.4022, 32.3347)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28289D #9D9D28

analogous

#28629D #28289D #62289D

triadic

#28289D #9D2828 #289D28

tetradic

#28289D #9D2862 #9D9D28 #289D62

square

#28289D #9D2862 #9D9D28 #289D62

split-complementary

#28289D #9D6228 #629D28

monochromatic

#0F0F3B #1C1C6C #28289D #3636CC #6767D8

Accessibility & contrast

On white

11.17

#28289D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#28289D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28289D

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28289D	#FFFFFF	#000000	##FFFFFF
##28289D	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A0

Deuteranopia (green-blind)

#00359B

Tritanopia (blue-blind)

#004A60

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #28289d;
/* rgb */ color: rgb(40, 40, 157);
/* oklch */ color: oklch(37.0% 0.182 273.0);

Tailwind

colors: {
  custom: {
    50: '#7563bb',
    500: '#28289d',
    950: '#000000',
  },
}

SCSS

$custom: #28289d;
$custom-light: #7563bb;
$custom-dark: #000000;

JSON

{
  "hex": "#28289d",
  "rgb": {
    "r": 40,
    "g": 40,
    "b": 157
  },
  "hsl": {
    "h": 240,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37005,
    "c": 0.182,
    "h": 273
  },
  "luminance": 0.04403
}

Semantic roles & 50–950 ramp

primary

#28289D

secondary

#BEBE62

accent

#E345E3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #28289D

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

Preview Lab → · Contrast checker → · Palette generator →