#28158A#28158A

#28158A is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.4% C 0.176 H 277.5°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#28158A
RGB	rgb(40, 21, 138)
HSL	hsl(250, 74%, 31%)
HSV	hsv(250, 85%, 54%)
CMYK	cmyk(71%, 84.8%, 0%, 45.9%)
CIE-LAB	lab(19.32, 43.82, -60.40)
CIE-LCH	lch(19.32, 74.62, 305.96°)
OKLab	oklab(32.42% 0.023 -0.1745)
OKLCH	oklch(32.42% 0.176 277.5)
XYZ	xyz(5.7292, 2.8219, 24.2826)
Luminance	0.0282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28158A #778A15

analogous

#153C8A #28158A #62158A

triadic

#28158A #8A2815 #158A28

tetradic

#28158A #8A153C #778A15 #158A62

square

#28158A #8A153C #778A15 #158A62

split-complementary

#28158A #8A6215 #3C8A15

monochromatic

#090520 #190D55 #28158A #371DBF #5439E1

Accessibility & contrast

On white

13.42

#28158A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#28158A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28158A

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28158A	#FFFFFF	#000000	##FFFFFF
##28158A	1.00	13.42	1.56	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338D

Deuteranopia (green-blind)

#002A88

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #28158a;
/* rgb */ color: rgb(40, 21, 138);
/* oklch */ color: oklch(32.4% 0.176 277.5);

Tailwind

colors: {
  custom: {
    50: '#7257ad',
    500: '#28158a',
    950: '#000000',
  },
}

SCSS

$custom: #28158a;
$custom-light: #7257ad;
$custom-dark: #000000;

JSON

{
  "hex": "#28158a",
  "rgb": {
    "r": 40,
    "g": 21,
    "b": 138
  },
  "hsl": {
    "h": 249.744,
    "s": 73.585,
    "l": 31.176
  },
  "oklch": {
    "l": 0.3242,
    "c": 0.17599,
    "h": 277.5
  },
  "luminance": 0.02822
}

Semantic roles & 50–950 ramp

primary

#28158A

secondary

#A9BE3D

accent

#F038D2

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #28158A

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

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