#28299C#28299C

#28299C is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.0% C 0.180 H 273.0°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#28299C
RGB	rgb(40, 41, 156)
HSL	hsl(239, 59%, 38%)
HSV	hsv(239, 74%, 61%)
CMYK	cmyk(74.4%, 73.7%, 0%, 38.8%)
CIE-LAB	lab(25.07, 39.03, -62.03)
CIE-LCH	lch(25.07, 73.29, 302.18°)
OKLab	oklab(37.05% 0.0093 -0.1795)
OKLCH	oklch(37.05% 0.18 273)
XYZ	xyz(7.6667, 4.4365, 31.8983)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28299C #9C9B28

analogous

#28639C #28299C #61289C

triadic

#28299C #9C2829 #299C28

tetradic

#28299C #9C2863 #9C9B28 #289C61

square

#28299C #9C2863 #9C9B28 #289C61

split-complementary

#28299C #9C6128 #639C28

monochromatic

#0F0F3B #1C1C6B #28299C #3637CB #6767D8

Accessibility & contrast

On white

11.13

#28299C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#28299C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28299C

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28299C	#FFFFFF	#000000	##FFFFFF
##28299C	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419F

Deuteranopia (green-blind)

#00369A

Tritanopia (blue-blind)

#004A60

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #28299c;
/* rgb */ color: rgb(40, 41, 156);
/* oklch */ color: oklch(37.0% 0.180 273.0);

Tailwind

colors: {
  custom: {
    50: '#7564ba',
    500: '#28299c',
    950: '#000000',
  },
}

SCSS

$custom: #28299c;
$custom-light: #7564ba;
$custom-dark: #000000;

JSON

{
  "hex": "#28299c",
  "rgb": {
    "r": 40,
    "g": 41,
    "b": 156
  },
  "hsl": {
    "h": 239.483,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37049,
    "c": 0.17971,
    "h": 273
  },
  "luminance": 0.04437
}

Semantic roles & 50–950 ramp

primary

#28299C

secondary

#BEBD62

accent

#E145E2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #28299C

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

Preview Lab → · Contrast checker → · Palette generator →