#28277C#28277C

#28277C is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.5% C 0.140 H 276.3°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#28277C
RGB	rgb(40, 39, 124)
HSL	hsl(241, 52%, 32%)
HSV	hsv(241, 69%, 49%)
CMYK	cmyk(67.7%, 68.5%, 0%, 51.4%)
CIE-LAB	lab(21.42, 28.97, -48.09)
CIE-LCH	lch(21.42, 56.15, 301.07°)
OKLab	oklab(33.46% 0.0153 -0.1388)
OKLCH	oklch(33.46% 0.14 276.3)
XYZ	xyz(5.2375, 3.3569, 19.4368)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28277C #7B7C27

analogous

#27517C #28277C #53277C

triadic

#28277C #7C2827 #277C28

tetradic

#28277C #7C2751 #7B7C27 #277C53

square

#28277C #7C2751 #7B7C27 #277C53

split-complementary

#28277C #7C5327 #517C27

monochromatic

#0A0A1F #19184D #28277C #3736AB #5654C9

Accessibility & contrast

On white

12.56

#28277C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#28277C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28277C

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28277C	#FFFFFF	#000000	##FFFFFF
##28277C	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377F

Deuteranopia (green-blind)

#00307A

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #28277c;
/* rgb */ color: rgb(40, 39, 124);
/* oklch */ color: oklch(33.5% 0.140 276.3);

Tailwind

colors: {
  custom: {
    50: '#6e61a3',
    500: '#28277c',
    950: '#000000',
  },
}

SCSS

$custom: #28277c;
$custom-light: #6e61a3;
$custom-dark: #000000;

JSON

{
  "hex": "#28277c",
  "rgb": {
    "r": 40,
    "g": 39,
    "b": 124
  },
  "hsl": {
    "h": 240.706,
    "s": 52.147,
    "l": 31.961
  },
  "oklch": {
    "l": 0.33461,
    "c": 0.13959,
    "h": 276.3
  },
  "luminance": 0.03357
}

Semantic roles & 50–950 ramp

primary

#28277C

secondary

#ADAE51

accent

#DC4CDA

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #28277C

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

Preview Lab → · Contrast checker → · Palette generator →