#28278F#28278F

#28278F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.4% C 0.165 H 274.4°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#28278F
RGB	rgb(40, 39, 143)
HSL	hsl(241, 57%, 36%)
HSV	hsv(241, 73%, 56%)
CMYK	cmyk(72%, 72.7%, 0%, 43.9%)
CIE-LAB	lab(23.29, 35.73, -56.95)
CIE-LCH	lch(23.29, 67.23, 302.10°)
OKLab	oklab(35.38% 0.0126 -0.1647)
OKLCH	oklch(35.38% 0.165 274.4)
XYZ	xyz(6.5569, 3.8847, 26.3855)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28278F #8E8F27

analogous

#275A8F #28278F #5C278F

triadic

#28278F #8F2827 #278F28

tetradic

#28278F #8F275A #8E8F27 #278F5C

square

#28278F #8F275A #8E8F27 #278F5C

split-complementary

#28278F #8F5C27 #5A8F27

monochromatic

#0D0D2F #1B1A5F #28278F #3534BF #5F5DD3

Accessibility & contrast

On white

11.82

#28278F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#28278F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28278F

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28278F	#FFFFFF	#000000	##FFFFFF
##28278F	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C92

Deuteranopia (green-blind)

#00338D

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #28278f;
/* rgb */ color: rgb(40, 39, 143);
/* oklch */ color: oklch(35.4% 0.165 274.4);

Tailwind

colors: {
  custom: {
    50: '#7262b1',
    500: '#28278f',
    950: '#000000',
  },
}

SCSS

$custom: #28278f;
$custom-light: #7262b1;
$custom-dark: #000000;

JSON

{
  "hex": "#28278f",
  "rgb": {
    "r": 40,
    "g": 39,
    "b": 143
  },
  "hsl": {
    "h": 240.577,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35375,
    "c": 0.16514,
    "h": 274.4
  },
  "luminance": 0.03885
}

Semantic roles & 50–950 ramp

primary

#28278F

secondary

#B7B85A

accent

#E047DF

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #28278F

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

Preview Lab → · Contrast checker → · Palette generator →