#28239D#28239D

#28239D is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.3% C 0.187 H 273.7°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#28239D
RGB	rgb(40, 35, 157)
HSL	hsl(242, 64%, 38%)
HSV	hsv(242, 78%, 62%)
CMYK	cmyk(74.5%, 77.7%, 0%, 38.4%)
CIE-LAB	lab(23.96, 42.80, -64.47)
CIE-LCH	lch(23.96, 77.39, 303.58°)
OKLab	oklab(36.3% 0.012 -0.1865)
OKLCH	oklch(36.3% 0.187 273.7)
XYZ	xyz(7.5599, 4.0867, 32.2822)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28239D #989D23

analogous

#235B9D #28239D #65239D

triadic

#28239D #9D2823 #239D28

tetradic

#28239D #9D235B #989D23 #239D65

square

#28239D #9D235B #989D23 #239D65

split-complementary

#28239D #9D6523 #5B9D23

monochromatic

#0E0D39 #1B186B #28239D #352ECF #645FDB

Accessibility & contrast

On white

11.55

#28239D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#28239D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28239D

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28239D	#FFFFFF	#000000	##FFFFFF
##28239D	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA0

Deuteranopia (green-blind)

#00339B

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #28239d;
/* rgb */ color: rgb(40, 35, 157);
/* oklch */ color: oklch(36.3% 0.187 273.7);

Tailwind

colors: {
  custom: {
    50: '#7660bb',
    500: '#28239d',
    950: '#000000',
  },
}

SCSS

$custom: #28239d;
$custom-light: #7660bb;
$custom-dark: #000000;

JSON

{
  "hex": "#28239d",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 157
  },
  "hsl": {
    "h": 242.459,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.36296,
    "c": 0.1869,
    "h": 273.7
  },
  "luminance": 0.04088
}

Semantic roles & 50–950 ramp

primary

#28239D

secondary

#BCC05C

accent

#E741E0

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #28239D

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

Preview Lab → · Contrast checker → · Palette generator →