#28319E#28319E

#28319E is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.5% C 0.174 H 271.5°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#28319E
RGB	rgb(40, 49, 158)
HSL	hsl(235, 60%, 39%)
HSV	hsv(235, 75%, 62%)
CMYK	cmyk(74.7%, 69%, 0%, 38%)
CIE-LAB	lab(27.06, 34.81, -59.96)
CIE-LCH	lch(27.06, 69.33, 300.14°)
OKLab	oklab(38.55% 0.0045 -0.1734)
OKLCH	oklch(38.55% 0.174 271.5)
XYZ	xyz(8.1428, 5.1155, 32.8994)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28319E #9E9528

analogous

#286C9E #28319E #5A289E

triadic

#28319E #9E2831 #319E28

tetradic

#28319E #9E286C #9E9528 #289E5A

square

#28319E #9E286C #9E9528 #289E5A

split-complementary

#28319E #9E5A28 #6C9E28

monochromatic

#0F133C #1C226D #28319E #3742CC #6870D9

Accessibility & contrast

On white

10.38

#28319E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#28319E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28319E

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28319E	#FFFFFF	#000000	##FFFFFF
##28319E	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A1

Deuteranopia (green-blind)

#003A9C

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #28319e;
/* rgb */ color: rgb(40, 49, 158);
/* oklch */ color: oklch(38.5% 0.174 271.5);

Tailwind

colors: {
  custom: {
    50: '#7569bc',
    500: '#28319e',
    950: '#000000',
  },
}

SCSS

$custom: #28319e;
$custom-light: #7569bc;
$custom-dark: #000000;

JSON

{
  "hex": "#28319e",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 158
  },
  "hsl": {
    "h": 235.424,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.38546,
    "c": 0.17351,
    "h": 271.5
  },
  "luminance": 0.05116
}

Semantic roles & 50–950 ramp

primary

#28319E

secondary

#BFB863

accent

#D745E3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #28319E

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

Preview Lab → · Contrast checker → · Palette generator →