#28258E#28258E

#28258E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.0% C 0.166 H 274.8°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#28258E
RGB	rgb(40, 37, 142)
HSL	hsl(242, 59%, 35%)
HSV	hsv(242, 74%, 56%)
CMYK	cmyk(71.8%, 73.9%, 0%, 44.3%)
CIE-LAB	lab(22.75, 36.59, -57.22)
CIE-LCH	lch(22.75, 67.92, 302.60°)
OKLab	oklab(34.96% 0.014 -0.1654)
OKLCH	oklch(34.96% 0.166 274.8)
XYZ	xyz(6.4175, 3.7266, 25.9670)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28258E #8B8E25

analogous

#25578E #28258E #5C258E

triadic

#28258E #8E2825 #258E28

tetradic

#28258E #8E2557 #8B8E25 #258E5C

square

#28258E #8E2557 #8B8E25 #258E5C

split-complementary

#28258E #8E5C25 #578E25

monochromatic

#0D0C2D #1A185D #28258E #3632BF #5D5AD4

Accessibility & contrast

On white

12.03

#28258E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#28258E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28258E

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28258E	#FFFFFF	#000000	##FFFFFF
##28258E	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B91

Deuteranopia (green-blind)

#00318C

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #28258e;
/* rgb */ color: rgb(40, 37, 142);
/* oklch */ color: oklch(35.0% 0.166 274.8);

Tailwind

colors: {
  custom: {
    50: '#7261b0',
    500: '#28258e',
    950: '#000000',
  },
}

SCSS

$custom: #28258e;
$custom-light: #7261b0;
$custom-dark: #000000;

JSON

{
  "hex": "#28258e",
  "rgb": {
    "r": 40,
    "g": 37,
    "b": 142
  },
  "hsl": {
    "h": 241.714,
    "s": 58.659,
    "l": 35.098
  },
  "oklch": {
    "l": 0.34958,
    "c": 0.16603,
    "h": 274.8
  },
  "luminance": 0.03727
}

Semantic roles & 50–950 ramp

primary

#28258E

secondary

#B6B956

accent

#E246DD

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #28258E

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

Preview Lab → · Contrast checker → · Palette generator →