#28256A#28256A

#28256A is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.4% C 0.117 H 279.2°. Best body text is #FFFFFF at 13.44:1 contrast (WCAG AA passes).

Color values

HEX	#28256A
RGB	rgb(40, 37, 106)
HSL	hsl(243, 48%, 28%)
HSV	hsv(243, 65%, 42%)
CMYK	cmyk(62.3%, 65.1%, 0%, 58.4%)
CIE-LAB	lab(19.29, 23.79, -40.01)
CIE-LCH	lch(19.29, 46.55, 300.74°)
OKLab	oklab(31.4% 0.0187 -0.115)
OKLCH	oklch(31.4% 0.117 279.2)
XYZ	xyz(4.1373, 2.8146, 13.9581)
Luminance	0.0282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28256A #676A25

analogous

#25446A #28256A #4A256A

triadic

#28256A #6A2825 #256A28

tetradic

#28256A #6A2544 #676A25 #256A4A

square

#28256A #6A2544 #676A25 #256A4A

split-complementary

#28256A #6A4A25 #446A25

monochromatic

#090817 #17153D #28256A #393597 #4F4AC0

Accessibility & contrast

On white

13.44

#28256A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#28256A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28256A

13.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28256A	#FFFFFF	#000000	##FFFFFF
##28256A	1.00	13.44	1.56	13.44
#FFFFFF	13.44	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00316C

Deuteranopia (green-blind)

#002C69

Tritanopia (blue-blind)

#003643

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #28256a;
/* rgb */ color: rgb(40, 37, 106);
/* oklch */ color: oklch(31.4% 0.117 279.2);

Tailwind

colors: {
  custom: {
    50: '#6a5f95',
    500: '#28256a',
    950: '#000000',
  },
}

SCSS

$custom: #28256a;
$custom-light: #6a5f95;
$custom-dark: #000000;

JSON

{
  "hex": "#28256a",
  "rgb": {
    "r": 40,
    "g": 37,
    "b": 106
  },
  "hsl": {
    "h": 242.609,
    "s": 48.252,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31398,
    "c": 0.11654,
    "h": 279.2
  },
  "luminance": 0.02815
}

Semantic roles & 50–950 ramp

primary

#28256A

secondary

#9A9D4E

accent

#D850D2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040D

muted

#7A797E

Preview Lab

Preview with #28256A

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

Preview Lab → · Contrast checker → · Palette generator →