#28278C#28278C

#28278C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.1% C 0.161 H 274.6°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#28278C
RGB	rgb(40, 39, 140)
HSL	hsl(241, 56%, 35%)
HSV	hsv(241, 72%, 55%)
CMYK	cmyk(71.4%, 72.1%, 0%, 45.1%)
CIE-LAB	lab(22.98, 34.67, -55.59)
CIE-LCH	lch(22.98, 65.52, 301.95°)
OKLab	oklab(35.06% 0.0131 -0.1607)
OKLCH	oklch(35.06% 0.161 274.6)
XYZ	xyz(6.3326, 3.7950, 25.2046)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28278C #8B8C27

analogous

#27588C #28278C #5A278C

triadic

#28278C #8C2827 #278C28

tetradic

#28278C #8C2758 #8B8C27 #278C5A

square

#28278C #8C2758 #8B8C27 #278C5A

split-complementary

#28278C #8C5A27 #588C27

monochromatic

#0D0C2C #1A1A5C #28278C #3634BC #5D5CD2

Accessibility & contrast

On white

11.94

#28278C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#28278C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28278C

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28278C	#FFFFFF	#000000	##FFFFFF
##28278C	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8F

Deuteranopia (green-blind)

#00328A

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #28278c;
/* rgb */ color: rgb(40, 39, 140);
/* oklch */ color: oklch(35.1% 0.161 274.6);

Tailwind

colors: {
  custom: {
    50: '#7162af',
    500: '#28278c',
    950: '#000000',
  },
}

SCSS

$custom: #28278c;
$custom-light: #7162af;
$custom-dark: #000000;

JSON

{
  "hex": "#28278c",
  "rgb": {
    "r": 40,
    "g": 39,
    "b": 140
  },
  "hsl": {
    "h": 240.594,
    "s": 56.425,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35064,
    "c": 0.16121,
    "h": 274.6
  },
  "luminance": 0.03796
}

Semantic roles & 50–950 ramp

primary

#28278C

secondary

#B6B758

accent

#E048DE

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#090510

muted

#7B797F

Preview Lab

Preview with #28278C

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

Preview Lab → · Contrast checker → · Palette generator →