#28278D#28278D

#28278D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.2% C 0.163 H 274.6°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#28278D
RGB	rgb(40, 39, 141)
HSL	hsl(241, 57%, 35%)
HSV	hsv(241, 72%, 55%)
CMYK	cmyk(71.6%, 72.3%, 0%, 44.7%)
CIE-LAB	lab(23.08, 35.03, -56.05)
CIE-LCH	lch(23.08, 66.09, 302.00°)
OKLab	oklab(35.17% 0.0129 -0.162)
OKLCH	oklch(35.17% 0.163 274.6)
XYZ	xyz(6.4067, 3.8246, 25.5947)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28278D #8C8D27

analogous

#27598D #28278D #5B278D

triadic

#28278D #8D2827 #278D28

tetradic

#28278D #8D2759 #8C8D27 #278D5B

square

#28278D #8D2759 #8C8D27 #278D5B

split-complementary

#28278D #8D5B27 #598D27

monochromatic

#0D0C2D #1A1A5D #28278D #3634BD #5E5CD2

Accessibility & contrast

On white

11.90

#28278D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#28278D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28278D

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28278D	#FFFFFF	#000000	##FFFFFF
##28278D	1.00	11.90	1.77	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00328B

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #28278d;
/* rgb */ color: rgb(40, 39, 141);
/* oklch */ color: oklch(35.2% 0.163 274.6);

Tailwind

colors: {
  custom: {
    50: '#7262af',
    500: '#28278d',
    950: '#000000',
  },
}

SCSS

$custom: #28278d;
$custom-light: #7262af;
$custom-dark: #000000;

JSON

{
  "hex": "#28278d",
  "rgb": {
    "r": 40,
    "g": 39,
    "b": 141
  },
  "hsl": {
    "h": 240.588,
    "s": 56.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.35167,
    "c": 0.16252,
    "h": 274.6
  },
  "luminance": 0.03825
}

Semantic roles & 50–950 ramp

primary

#28278D

secondary

#B6B759

accent

#E048DE

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#090511

muted

#7B7980

Preview Lab

Preview with #28278D

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

Preview Lab → · Contrast checker → · Palette generator →