#28257A#28257A

#28257A is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.9% C 0.139 H 277.1°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#28257A
RGB	rgb(40, 37, 122)
HSL	hsl(242, 53%, 31%)
HSV	hsv(242, 70%, 48%)
CMYK	cmyk(67.2%, 69.7%, 0%, 52.2%)
CIE-LAB	lab(20.75, 29.56, -47.92)
CIE-LCH	lch(20.75, 56.31, 301.66°)
OKLab	oklab(32.92% 0.0171 -0.1383)
OKLCH	oklch(32.92% 0.139 277.1)
XYZ	xyz(5.0484, 3.1790, 18.7561)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28257A #777A25

analogous

#254C7A #28257A #52257A

triadic

#28257A #7A2825 #257A28

tetradic

#28257A #7A254C #777A25 #257A52

square

#28257A #7A254C #777A25 #257A52

split-complementary

#28257A #7A5225 #4C7A25

monochromatic

#09091C #19174B #28257A #3733A9 #5450CA

Accessibility & contrast

On white

12.84

#28257A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#28257A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28257A

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28257A	#FFFFFF	#000000	##FFFFFF
##28257A	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367D

Deuteranopia (green-blind)

#002E78

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #28257a;
/* rgb */ color: rgb(40, 37, 122);
/* oklch */ color: oklch(32.9% 0.139 277.1);

Tailwind

colors: {
  custom: {
    50: '#6d60a1',
    500: '#28257a',
    950: '#000000',
  },
}

SCSS

$custom: #28257a;
$custom-light: #6d60a1;
$custom-dark: #000000;

JSON

{
  "hex": "#28257a",
  "rgb": {
    "r": 40,
    "g": 37,
    "b": 122
  },
  "hsl": {
    "h": 242.118,
    "s": 53.459,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32915,
    "c": 0.13932,
    "h": 277.1
  },
  "luminance": 0.03179
}

Semantic roles & 50–950 ramp

primary

#28257A

secondary

#A9AC4E

accent

#DD4BD8

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08050F

muted

#7B797F

Preview Lab

Preview with #28257A

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

Preview Lab → · Contrast checker → · Palette generator →