#28368A#28368A

#28368A is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.6% C 0.140 H 270.8°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#28368A
RGB	rgb(40, 54, 138)
HSL	hsl(231, 55%, 35%)
HSV	hsv(231, 71%, 54%)
CMYK	cmyk(71%, 60.9%, 0%, 45.9%)
CIE-LAB	lab(26.52, 24.10, -48.56)
CIE-LCH	lch(26.52, 54.21, 296.40°)
OKLab	oklab(37.59% 0.0021 -0.14)
OKLCH	oklch(37.59% 0.14 270.8)
XYZ	xyz(6.7801, 4.9238, 24.6329)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28368A #8A7C28

analogous

#28678A #28368A #4B288A

triadic

#28368A #8A2836 #368A28

tetradic

#28368A #8A2867 #8A7C28 #288A4B

square

#28368A #8A2867 #8A7C28 #288A4B

split-complementary

#28368A #8A4B28 #678A28

monochromatic

#0C112B #1A235B #28368A #3649B9 #5D6DD0

Accessibility & contrast

On white

10.58

#28368A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#28368A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28368A

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28368A	#FFFFFF	#000000	##FFFFFF
##28368A	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438D

Deuteranopia (green-blind)

#003A88

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #28368a;
/* rgb */ color: rgb(40, 54, 138);
/* oklch */ color: oklch(37.6% 0.140 270.8);

Tailwind

colors: {
  custom: {
    50: '#6f6cad',
    500: '#28368a',
    950: '#000000',
  },
}

SCSS

$custom: #28368a;
$custom-light: #6f6cad;
$custom-dark: #000000;

JSON

{
  "hex": "#28368a",
  "rgb": {
    "r": 40,
    "g": 54,
    "b": 138
  },
  "hsl": {
    "h": 231.429,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.37591,
    "c": 0.14002,
    "h": 270.8
  },
  "luminance": 0.04924
}

Semantic roles & 50–950 ramp

primary

#28368A

secondary

#B5A859

accent

#C949DE

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #28368A

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

Preview Lab → · Contrast checker → · Palette generator →