#28179F#28179F

#28179F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.1% C 0.199 H 274.5°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#28179F
RGB	rgb(40, 23, 159)
HSL	hsl(248, 75%, 36%)
HSV	hsv(248, 86%, 62%)
CMYK	cmyk(74.8%, 85.5%, 0%, 37.6%)
CIE-LAB	lab(22.18, 49.28, -68.63)
CIE-LCH	lch(22.18, 84.49, 305.68°)
OKLab	oklab(35.13% 0.0158 -0.1984)
OKLCH	oklch(35.13% 0.199 274.5)
XYZ	xyz(7.4374, 3.5664, 33.0906)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28179F #8E9F17

analogous

#174A9F #28179F #6C179F

triadic

#28179F #9F2817 #179F28

tetradic

#28179F #9F174A #8E9F17 #179F6C

square

#28179F #9F174A #8E9F17 #179F6C

split-complementary

#28179F #9F6C17 #4A9F17

monochromatic

#0D0834 #1B0F6A #28179F #351FD4 #5F4BE5

Accessibility & contrast

On white

12.26

#28179F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#28179F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28179F

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28179F	#FFFFFF	#000000	##FFFFFF
##28179F	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA3

Deuteranopia (green-blind)

#002F9D

Tritanopia (blue-blind)

#00445E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #28179f;
/* rgb */ color: rgb(40, 23, 159);
/* oklch */ color: oklch(35.1% 0.199 274.5);

Tailwind

colors: {
  custom: {
    50: '#775abd',
    500: '#28179f',
    950: '#000000',
  },
}

SCSS

$custom: #28179f;
$custom-light: #775abd;
$custom-dark: #000000;

JSON

{
  "hex": "#28179f",
  "rgb": {
    "r": 40,
    "g": 23,
    "b": 159
  },
  "hsl": {
    "h": 247.5,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35131,
    "c": 0.19903,
    "h": 274.5
  },
  "luminance": 0.03567
}

Semantic roles & 50–950 ramp

primary

#28179F

secondary

#B7C74B

accent

#F136DA

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #28179F

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

Preview Lab → · Contrast checker → · Palette generator →