#28335C#28335C

#28335C is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.3% C 0.074 H 270.6°. Best body text is #FFFFFF at 12.22:1 contrast (WCAG AA passes).

Color values

HEX	#28335C
RGB	rgb(40, 51, 92)
HSL	hsl(227, 39%, 26%)
HSV	hsv(227, 57%, 36%)
CMYK	cmyk(56.5%, 44.6%, 0%, 63.9%)
CIE-LAB	lab(22.27, 8.81, -26.04)
CIE-LCH	lch(22.27, 27.49, 288.69°)
OKLab	oklab(33.31% 0.0008 -0.0738)
OKLCH	oklch(33.31% 0.074 270.6)
XYZ	xyz(3.9900, 3.5912, 10.6061)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28335C #5C5128

analogous

#284D5C #28335C #37285C

triadic

#28335C #5C2833 #335C28

tetradic

#28335C #5C284D #5C5128 #285C37

square

#28335C #5C284D #5C5128 #285C37

split-complementary

#28335C #5C3728 #4D5C28

monochromatic

#090C15 #151B31 #28335C #3B4B87 #4D62B1

Accessibility & contrast

On white

12.22

#28335C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#28335C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28335C

12.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28335C	#FFFFFF	#000000	##FFFFFF
##28335C	1.00	12.22	1.72	12.22
#FFFFFF	12.22	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22385E

Deuteranopia (green-blind)

#1C335B

Tritanopia (blue-blind)

#0F3C43

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #28335c;
/* rgb */ color: rgb(40, 51, 92);
/* oklch */ color: oklch(33.3% 0.074 270.6);

Tailwind

colors: {
  custom: {
    50: '#666a8a',
    500: '#28335c',
    950: '#000000',
  },
}

SCSS

$custom: #28335c;
$custom-light: #666a8a;
$custom-dark: #000000;

JSON

{
  "hex": "#28335c",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 92
  },
  "hsl": {
    "h": 227.308,
    "s": 39.394,
    "l": 25.882
  },
  "oklch": {
    "l": 0.33311,
    "c": 0.07384,
    "h": 270.6
  },
  "luminance": 0.03591
}

Semantic roles & 50–950 ramp

primary

#28335C

secondary

#8F8251

accent

#B659CF

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060C

muted

#7A7A7D

Preview Lab

Preview with #28335C

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

Preview Lab → · Contrast checker → · Palette generator →