#28319C#28319C

#28319C is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.3% C 0.171 H 271.6°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#28319C
RGB	rgb(40, 49, 156)
HSL	hsl(235, 59%, 38%)
HSV	hsv(235, 74%, 61%)
CMYK	cmyk(74.4%, 68.6%, 0%, 38.8%)
CIE-LAB	lab(26.87, 34.09, -59.06)
CIE-LCH	lch(26.87, 68.19, 299.99°)
OKLab	oklab(38.35% 0.0047 -0.1708)
OKLCH	oklch(38.35% 0.171 271.6)
XYZ	xyz(7.9721, 5.0472, 32.0001)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28319C #9C9328

analogous

#286B9C #28319C #59289C

triadic

#28319C #9C2831 #319C28

tetradic

#28319C #9C286B #9C9328 #289C59

square

#28319C #9C286B #9C9328 #289C59

split-complementary

#28319C #9C5928 #6B9C28

monochromatic

#0F123B #1C226B #28319C #3641CB #676FD8

Accessibility & contrast

On white

10.45

#28319C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#28319C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28319C

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28319C	#FFFFFF	#000000	##FFFFFF
##28319C	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459F

Deuteranopia (green-blind)

#003A9A

Tritanopia (blue-blind)

#004E62

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #28319c;
/* rgb */ color: rgb(40, 49, 156);
/* oklch */ color: oklch(38.3% 0.171 271.6);

Tailwind

colors: {
  custom: {
    50: '#7469ba',
    500: '#28319c',
    950: '#000000',
  },
}

SCSS

$custom: #28319c;
$custom-light: #7469ba;
$custom-dark: #000000;

JSON

{
  "hex": "#28319c",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 156
  },
  "hsl": {
    "h": 235.345,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.38347,
    "c": 0.17088,
    "h": 271.6
  },
  "luminance": 0.05048
}

Semantic roles & 50–950 ramp

primary

#28319C

secondary

#BEB762

accent

#D645E2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #28319C

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

Preview Lab → · Contrast checker → · Palette generator →