#28328B#28328B

#28328B is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.147 H 272.1°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#28328B
RGB	rgb(40, 50, 139)
HSL	hsl(234, 55%, 35%)
HSV	hsv(234, 71%, 55%)
CMYK	cmyk(71.2%, 64%, 0%, 45.5%)
CIE-LAB	lab(25.55, 27.18, -50.76)
CIE-LCH	lch(25.55, 57.58, 298.17°)
OKLab	oklab(36.9% 0.0053 -0.1465)
OKLCH	oklch(36.9% 0.147 272.1)
XYZ	xyz(6.6743, 4.5958, 24.9564)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28328B #8B8128

analogous

#28648B #28328B #4F288B

triadic

#28328B #8B2832 #328B28

tetradic

#28328B #8B2864 #8B8128 #288B4F

square

#28328B #8B2864 #8B8128 #288B4F

split-complementary

#28328B #8B4F28 #648B28

monochromatic

#0D102C #1A215B #28328B #3643BB #5D69D0

Accessibility & contrast

On white

10.94

#28328B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#28328B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28328B

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28328B	#FFFFFF	#000000	##FFFFFF
##28328B	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418E

Deuteranopia (green-blind)

#003889

Tritanopia (blue-blind)

#004959

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #28328b;
/* rgb */ color: rgb(40, 50, 139);
/* oklch */ color: oklch(36.9% 0.147 272.1);

Tailwind

colors: {
  custom: {
    50: '#706aae',
    500: '#28328b',
    950: '#000000',
  },
}

SCSS

$custom: #28328b;
$custom-light: #706aae;
$custom-dark: #000000;

JSON

{
  "hex": "#28328b",
  "rgb": {
    "r": 40,
    "g": 50,
    "b": 139
  },
  "hsl": {
    "h": 233.939,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.36903,
    "c": 0.14659,
    "h": 272.1
  },
  "luminance": 0.04596
}

Semantic roles & 50–950 ramp

primary

#28328B

secondary

#B6AC59

accent

#D049DF

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #28328B

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

Preview Lab → · Contrast checker → · Palette generator →