#28247C#28247C

#28247C is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.9% C 0.143 H 277.1°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#28247C
RGB	rgb(40, 36, 124)
HSL	hsl(243, 55%, 31%)
HSV	hsv(243, 71%, 49%)
CMYK	cmyk(67.7%, 71%, 0%, 51.4%)
CIE-LAB	lab(20.70, 30.91, -49.27)
CIE-LCH	lch(20.70, 58.16, 302.10°)
OKLab	oklab(32.94% 0.0177 -0.1422)
OKLCH	oklch(32.94% 0.143 277.1)
XYZ	xyz(5.1429, 3.1677, 19.4053)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28247C #787C24

analogous

#244C7C #28247C #54247C

triadic

#28247C #7C2824 #247C28

tetradic

#28247C #7C244C #787C24 #247C54

square

#28247C #7C244C #787C24 #247C54

split-complementary

#28247C #7C5424 #4C7C24

monochromatic

#09081D #19164D #28247C #3732AB #544FCC

Accessibility & contrast

On white

12.86

#28247C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#28247C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28247C

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28247C	#FFFFFF	#000000	##FFFFFF
##28247C	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367F

Deuteranopia (green-blind)

#002E7A

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #28247c;
/* rgb */ color: rgb(40, 36, 124);
/* oklch */ color: oklch(32.9% 0.143 277.1);

Tailwind

colors: {
  custom: {
    50: '#6e5fa3',
    500: '#28247c',
    950: '#000000',
  },
}

SCSS

$custom: #28247c;
$custom-light: #6e5fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#28247c",
  "rgb": {
    "r": 40,
    "g": 36,
    "b": 124
  },
  "hsl": {
    "h": 242.727,
    "s": 55,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32943,
    "c": 0.14329,
    "h": 277.1
  },
  "luminance": 0.03168
}

Semantic roles & 50–950 ramp

primary

#28247C

secondary

#AAAE4D

accent

#DE49D8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #28247C

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

Preview Lab → · Contrast checker → · Palette generator →