#28238B#28238B

#28238B is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.3% C 0.164 H 275.5°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#28238B
RGB	rgb(40, 35, 139)
HSL	hsl(243, 60%, 34%)
HSV	hsv(243, 75%, 55%)
CMYK	cmyk(71.2%, 74.8%, 0%, 45.5%)
CIE-LAB	lab(22.00, 36.75, -56.58)
CIE-LCH	lch(22.00, 67.47, 303.01°)
OKLab	oklab(34.34% 0.0157 -0.1635)
OKLCH	oklch(34.34% 0.164 275.5)
XYZ	xyz(6.1348, 3.5167, 24.7766)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28238B #868B23

analogous

#23528B #28238B #5C238B

triadic

#28238B #8B2823 #238B28

tetradic

#28238B #8B2352 #868B23 #238B5C

square

#28238B #8B2352 #868B23 #238B5C

split-complementary

#28238B #8B5C23 #528B23

monochromatic

#0C0A29 #1A175A #28238B #362FBC #5B54D4

Accessibility & contrast

On white

12.33

#28238B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#28238B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28238B

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28238B	#FFFFFF	#000000	##FFFFFF
##28238B	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#003089

Tritanopia (blue-blind)

#004155

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #28238b;
/* rgb */ color: rgb(40, 35, 139);
/* oklch */ color: oklch(34.3% 0.164 275.5);

Tailwind

colors: {
  custom: {
    50: '#715fae',
    500: '#28238b',
    950: '#000000',
  },
}

SCSS

$custom: #28238b;
$custom-light: #715fae;
$custom-dark: #000000;

JSON

{
  "hex": "#28238b",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 139
  },
  "hsl": {
    "h": 242.885,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.34335,
    "c": 0.16429,
    "h": 275.5
  },
  "luminance": 0.03517
}

Semantic roles & 50–950 ramp

primary

#28238B

secondary

#B3B852

accent

#E345DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #28238B

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

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