#28238E#28238E

#28238E is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.7% C 0.168 H 275.2°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#28238E
RGB	rgb(40, 35, 142)
HSL	hsl(243, 60%, 35%)
HSV	hsv(243, 75%, 56%)
CMYK	cmyk(71.8%, 75.4%, 0%, 44.3%)
CIE-LAB	lab(22.32, 37.78, -57.92)
CIE-LCH	lch(22.32, 69.15, 303.11°)
OKLab	oklab(34.66% 0.0151 -0.1675)
OKLCH	oklch(34.66% 0.168 275.2)
XYZ	xyz(6.3570, 3.6056, 25.9469)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28238E #898E23

analogous

#23538E #28238E #5E238E

triadic

#28238E #8E2823 #238E28

tetradic

#28238E #8E2353 #898E23 #238E5E

square

#28238E #8E2353 #898E23 #238E5E

split-complementary

#28238E #8E5E23 #538E23

monochromatic

#0C0B2C #1A175D #28238E #362FBF #5C56D5

Accessibility & contrast

On white

12.20

#28238E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#28238E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28238E

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28238E	#FFFFFF	#000000	##FFFFFF
##28238E	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A91

Deuteranopia (green-blind)

#00308C

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #28238e;
/* rgb */ color: rgb(40, 35, 142);
/* oklch */ color: oklch(34.7% 0.168 275.2);

Tailwind

colors: {
  custom: {
    50: '#725fb0',
    500: '#28238e',
    950: '#000000',
  },
}

SCSS

$custom: #28238e;
$custom-light: #725fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#28238e",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 142
  },
  "hsl": {
    "h": 242.804,
    "s": 60.452,
    "l": 34.706
  },
  "oklch": {
    "l": 0.34656,
    "c": 0.16814,
    "h": 275.2
  },
  "luminance": 0.03606
}

Semantic roles & 50–950 ramp

primary

#28238E

secondary

#B5B953

accent

#E444DC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #28238E

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

Preview Lab → · Contrast checker → · Palette generator →