#28287E#28287E

#28287E is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.8% C 0.141 H 275.8°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#28287E
RGB	rgb(40, 40, 126)
HSL	hsl(240, 52%, 33%)
HSV	hsv(240, 68%, 49%)
CMYK	cmyk(68.3%, 68.3%, 0%, 50.6%)
CIE-LAB	lab(21.85, 29.04, -48.66)
CIE-LCH	lch(21.85, 56.66, 300.83°)
OKLab	oklab(33.83% 0.0142 -0.1404)
OKLCH	oklch(33.83% 0.141 275.8)
XYZ	xyz(5.3985, 3.4746, 20.1208)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28287E #7E7E28

analogous

#28537E #28287E #53287E

triadic

#28287E #7E2828 #287E28

tetradic

#28287E #7E2853 #7E7E28 #287E53

square

#28287E #7E2853 #7E7E28 #287E53

split-complementary

#28287E #7E5328 #537E28

monochromatic

#0B0B21 #191950 #28287E #3737AC #5757CA

Accessibility & contrast

On white

12.39

#28287E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#28287E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28287E

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28287E	#FFFFFF	#000000	##FFFFFF
##28287E	1.00	12.39	1.70	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003881

Deuteranopia (green-blind)

#00307C

Tritanopia (blue-blind)

#003E4F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #28287e;
/* rgb */ color: rgb(40, 40, 126);
/* oklch */ color: oklch(33.8% 0.141 275.8);

Tailwind

colors: {
  custom: {
    50: '#6e62a4',
    500: '#28287e',
    950: '#000000',
  },
}

SCSS

$custom: #28287e;
$custom-light: #6e62a4;
$custom-dark: #000000;

JSON

{
  "hex": "#28287e",
  "rgb": {
    "r": 40,
    "g": 40,
    "b": 126
  },
  "hsl": {
    "h": 240,
    "s": 51.807,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33833,
    "c": 0.14111,
    "h": 275.8
  },
  "luminance": 0.03475
}

Semantic roles & 50–950 ramp

primary

#28287E

secondary

#AFAF53

accent

#DB4DDB

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #28287E

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

Preview Lab → · Contrast checker → · Palette generator →