#28319A#28319A

#28319A is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.1% C 0.168 H 271.7°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#28319A
RGB	rgb(40, 49, 154)
HSL	hsl(235, 59%, 38%)
HSV	hsv(235, 74%, 60%)
CMYK	cmyk(74%, 68.2%, 0%, 39.6%)
CIE-LAB	lab(26.68, 33.36, -58.15)
CIE-LCH	lch(26.68, 67.04, 299.84°)
OKLab	oklab(38.15% 0.0049 -0.1682)
OKLCH	oklch(38.15% 0.168 271.7)
XYZ	xyz(7.8041, 4.9800, 31.1155)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28319A #9A9128

analogous

#286A9A #28319A #58289A

triadic

#28319A #9A2831 #319A28

tetradic

#28319A #9A286A #9A9128 #289A58

square

#28319A #9A286A #9A9128 #289A58

split-complementary

#28319A #9A5828 #6A9A28

monochromatic

#0F1239 #1B2269 #28319A #3541CA #656ED7

Accessibility & contrast

On white

10.52

#28319A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#28319A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28319A

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28319A	#FFFFFF	#000000	##FFFFFF
##28319A	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449D

Deuteranopia (green-blind)

#003A98

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #28319a;
/* rgb */ color: rgb(40, 49, 154);
/* oklch */ color: oklch(38.1% 0.168 271.7);

Tailwind

colors: {
  custom: {
    50: '#7469b9',
    500: '#28319a',
    950: '#000000',
  },
}

SCSS

$custom: #28319a;
$custom-light: #7469b9;
$custom-dark: #000000;

JSON

{
  "hex": "#28319a",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 154
  },
  "hsl": {
    "h": 235.263,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.3815,
    "c": 0.16823,
    "h": 271.7
  },
  "luminance": 0.04981
}

Semantic roles & 50–950 ramp

primary

#28319A

secondary

#BDB661

accent

#D646E2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #28319A

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

Preview Lab → · Contrast checker → · Palette generator →