#28338C#28338C

#28338C is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.147 H 271.7°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#28338C
RGB	rgb(40, 51, 140)
HSL	hsl(233, 56%, 35%)
HSV	hsv(233, 71%, 55%)
CMYK	cmyk(71.4%, 63.6%, 0%, 45.1%)
CIE-LAB	lab(25.90, 26.89, -50.81)
CIE-LCH	lch(25.90, 57.49, 297.88°)
OKLab	oklab(37.19% 0.0045 -0.1466)
OKLCH	oklch(37.19% 0.147 271.7)
XYZ	xyz(6.7909, 4.7116, 25.3574)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28338C #8C8128

analogous

#28658C #28338C #4F288C

triadic

#28338C #8C2833 #338C28

tetradic

#28338C #8C2865 #8C8128 #288C4F

square

#28338C #8C2865 #8C8128 #288C4F

split-complementary

#28338C #8C4F28 #658C28

monochromatic

#0D102D #1A225C #28338C #3644BC #5E6AD1

Accessibility & contrast

On white

10.81

#28338C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#28338C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28338C

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28338C	#FFFFFF	#000000	##FFFFFF
##28338C	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428F

Deuteranopia (green-blind)

#00398A

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #28338c;
/* rgb */ color: rgb(40, 51, 140);
/* oklch */ color: oklch(37.2% 0.147 271.7);

Tailwind

colors: {
  custom: {
    50: '#706aae',
    500: '#28338c',
    950: '#000000',
  },
}

SCSS

$custom: #28338c;
$custom-light: #706aae;
$custom-dark: #000000;

JSON

{
  "hex": "#28338c",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 140
  },
  "hsl": {
    "h": 233.4,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.37185,
    "c": 0.14672,
    "h": 271.7
  },
  "luminance": 0.04712
}

Semantic roles & 50–950 ramp

primary

#28338C

secondary

#B6AC5A

accent

#CE49DF

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #28338C

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

Preview Lab → · Contrast checker → · Palette generator →