#282C99#282C99

#282C99 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.2% C 0.173 H 272.7°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#282C99
RGB	rgb(40, 44, 153)
HSL	hsl(238, 59%, 38%)
HSV	hsv(238, 74%, 60%)
CMYK	cmyk(73.9%, 71.2%, 0%, 40%)
CIE-LAB	lab(25.42, 36.16, -59.61)
CIE-LCH	lch(25.42, 69.72, 301.24°)
OKLab	oklab(37.21% 0.0081 -0.1724)
OKLCH	oklch(37.21% 0.173 272.7)
XYZ	xyz(7.5236, 4.5516, 30.6129)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282C99 #999528

analogous

#286499 #282C99 #5C2899

triadic

#282C99 #99282C #2C9928

tetradic

#282C99 #992864 #999528 #28995C

square

#282C99 #992864 #999528 #28995C

split-complementary

#282C99 #995C28 #649928

monochromatic

#0F1038 #1B1E68 #282C99 #353ACA #6569D7

Accessibility & contrast

On white

10.99

#282C99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#282C99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282C99

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282C99	#FFFFFF	#000000	##FFFFFF
##282C99	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429C

Deuteranopia (green-blind)

#003797

Tritanopia (blue-blind)

#004A5F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #282c99;
/* rgb */ color: rgb(40, 44, 153);
/* oklch */ color: oklch(37.2% 0.173 272.7);

Tailwind

colors: {
  custom: {
    50: '#7466b8',
    500: '#282c99',
    950: '#000000',
  },
}

SCSS

$custom: #282c99;
$custom-light: #7466b8;
$custom-dark: #000000;

JSON

{
  "hex": "#282c99",
  "rgb": {
    "r": 40,
    "g": 44,
    "b": 153
  },
  "hsl": {
    "h": 237.876,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.37209,
    "c": 0.17262,
    "h": 272.7
  },
  "luminance": 0.04552
}

Semantic roles & 50–950 ramp

primary

#282C99

secondary

#BDB960

accent

#DC46E2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #282C99

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

Preview Lab → · Contrast checker → · Palette generator →