#28287A#28287A

#28287A is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.136 H 276.2°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#28287A
RGB	rgb(40, 40, 122)
HSL	hsl(240, 51%, 32%)
HSV	hsv(240, 67%, 48%)
CMYK	cmyk(67.2%, 67.2%, 0%, 52.2%)
CIE-LAB	lab(21.48, 27.59, -46.72)
CIE-LCH	lch(21.48, 54.26, 300.56°)
OKLab	oklab(33.45% 0.0146 -0.1347)
OKLCH	oklch(33.45% 0.136 276.2)
XYZ	xyz(5.1456, 3.3734, 18.7886)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28287A #7A7A28

analogous

#28517A #28287A #51287A

triadic

#28287A #7A2828 #287A28

tetradic

#28287A #7A2851 #7A7A28 #287A51

square

#28287A #7A2851 #7A7A28 #287A51

split-complementary

#28287A #7A5128 #517A28

monochromatic

#0A0A1E #19194C #28287A #3737A8 #5555C7

Accessibility & contrast

On white

12.54

#28287A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#28287A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28287A

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28287A	#FFFFFF	#000000	##FFFFFF
##28287A	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377D

Deuteranopia (green-blind)

#003078

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #28287a;
/* rgb */ color: rgb(40, 40, 122);
/* oklch */ color: oklch(33.4% 0.136 276.2);

Tailwind

colors: {
  custom: {
    50: '#6d62a1',
    500: '#28287a',
    950: '#000000',
  },
}

SCSS

$custom: #28287a;
$custom-light: #6d62a1;
$custom-dark: #000000;

JSON

{
  "hex": "#28287a",
  "rgb": {
    "r": 40,
    "g": 40,
    "b": 122
  },
  "hsl": {
    "h": 240,
    "s": 50.617,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33448,
    "c": 0.13552,
    "h": 276.2
  },
  "luminance": 0.03374
}

Semantic roles & 50–950 ramp

primary

#28287A

secondary

#ACAC52

accent

#DA4EDA

background

#F6F5FA

surface

#ECEAF3

border

#C7C6CD

text

#08050F

muted

#7A797F

Preview Lab

Preview with #28287A

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

Preview Lab → · Contrast checker → · Palette generator →