#28355D#28355D

#28355D is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.9% C 0.073 H 268.7°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#28355D
RGB	rgb(40, 53, 93)
HSL	hsl(225, 40%, 26%)
HSV	hsv(225, 57%, 36%)
CMYK	cmyk(57%, 43%, 0%, 63.5%)
CIE-LAB	lab(22.96, 7.78, -25.61)
CIE-LCH	lch(22.96, 26.76, 286.89°)
OKLab	oklab(33.86% -0.0016 -0.0726)
OKLCH	oklch(33.86% 0.073 268.7)
XYZ	xyz(4.1233, 3.7873, 10.8676)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28355D #5D5028

analogous

#284F5D #28355D #35285D

triadic

#28355D #5D2835 #355D28

tetradic

#28355D #5D284F #5D5028 #285D35

square

#28355D #5D284F #5D5028 #285D35

split-complementary

#28355D #5D3528 #4F5D28

monochromatic

#090C15 #161D32 #28355D #3A4D88 #4D66B2

Accessibility & contrast

On white

11.95

#28355D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#28355D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28355D

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28355D	#FFFFFF	#000000	##FFFFFF
##28355D	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25395F

Deuteranopia (green-blind)

#1F355C

Tritanopia (blue-blind)

#0E3E44

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #28355d;
/* rgb */ color: rgb(40, 53, 93);
/* oklch */ color: oklch(33.9% 0.073 268.7);

Tailwind

colors: {
  custom: {
    50: '#666c8b',
    500: '#28355d',
    950: '#000000',
  },
}

SCSS

$custom: #28355d;
$custom-light: #666c8b;
$custom-dark: #000000;

JSON

{
  "hex": "#28355d",
  "rgb": {
    "r": 40,
    "g": 53,
    "b": 93
  },
  "hsl": {
    "h": 225.283,
    "s": 39.85,
    "l": 26.078
  },
  "oklch": {
    "l": 0.33857,
    "c": 0.07258,
    "h": 268.7
  },
  "luminance": 0.03788
}

Semantic roles & 50–950 ramp

primary

#28355D

secondary

#908051

accent

#B258D0

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060C

muted

#7A7A7D

Preview Lab

Preview with #28355D

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

Preview Lab → · Contrast checker → · Palette generator →