#282399#282399

#282399 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.9% C 0.182 H 274.0°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#282399
RGB	rgb(40, 35, 153)
HSL	hsl(243, 63%, 37%)
HSV	hsv(243, 77%, 60%)
CMYK	cmyk(73.9%, 77.1%, 0%, 40%)
CIE-LAB	lab(23.51, 41.48, -62.75)
CIE-LCH	lch(23.51, 75.22, 303.46°)
OKLab	oklab(35.85% 0.0128 -0.1815)
OKLCH	oklch(35.85% 0.182 274)
XYZ	xyz(7.2240, 3.9524, 30.5130)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282399 #949923

analogous

#235999 #282399 #632399

triadic

#282399 #992823 #239928

tetradic

#282399 #992359 #949923 #239963

square

#282399 #992359 #949923 #239963

split-complementary

#282399 #996323 #599923

monochromatic

#0E0C35 #1B1867 #282399 #352ECB #625DDA

Accessibility & contrast

On white

11.73

#282399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#282399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282399

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282399	#FFFFFF	#000000	##FFFFFF
##282399	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9C

Deuteranopia (green-blind)

#003297

Tritanopia (blue-blind)

#00465D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #282399;
/* rgb */ color: rgb(40, 35, 153);
/* oklch */ color: oklch(35.9% 0.182 274.0);

Tailwind

colors: {
  custom: {
    50: '#7560b8',
    500: '#282399',
    950: '#000000',
  },
}

SCSS

$custom: #282399;
$custom-light: #7560b8;
$custom-dark: #000000;

JSON

{
  "hex": "#282399",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 153
  },
  "hsl": {
    "h": 242.542,
    "s": 62.766,
    "l": 36.863
  },
  "oklch": {
    "l": 0.35853,
    "c": 0.18198,
    "h": 274
  },
  "luminance": 0.03953
}

Semantic roles & 50–950 ramp

primary

#282399

secondary

#BABE59

accent

#E642DF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #282399

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

Preview Lab → · Contrast checker → · Palette generator →