#282B99#282B99

#282B99 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.0% C 0.174 H 272.9°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#282B99
RGB	rgb(40, 43, 153)
HSL	hsl(238, 59%, 38%)
HSV	hsv(238, 74%, 60%)
CMYK	cmyk(73.9%, 71.9%, 0%, 40%)
CIE-LAB	lab(25.19, 36.78, -59.98)
CIE-LCH	lch(25.19, 70.36, 301.51°)
OKLab	oklab(37.05% 0.0087 -0.1735)
OKLCH	oklch(37.05% 0.174 272.9)
XYZ	xyz(7.4868, 4.4780, 30.6006)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282B99 #999628

analogous

#286399 #282B99 #5D2899

triadic

#282B99 #99282B #2B9928

tetradic

#282B99 #992863 #999628 #28995D

square

#282B99 #992863 #999628 #28995D

split-complementary

#282B99 #995D28 #639928

monochromatic

#0F1038 #1B1D68 #282B99 #3539CA #6568D7

Accessibility & contrast

On white

11.08

#282B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#282B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282B99

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282B99	#FFFFFF	#000000	##FFFFFF
##282B99	1.00	11.08	1.90	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419C

Deuteranopia (green-blind)

#003697

Tritanopia (blue-blind)

#004A5F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #282b99;
/* rgb */ color: rgb(40, 43, 153);
/* oklch */ color: oklch(37.0% 0.174 272.9);

Tailwind

colors: {
  custom: {
    50: '#7465b8',
    500: '#282b99',
    950: '#000000',
  },
}

SCSS

$custom: #282b99;
$custom-light: #7465b8;
$custom-dark: #000000;

JSON

{
  "hex": "#282b99",
  "rgb": {
    "r": 40,
    "g": 43,
    "b": 153
  },
  "hsl": {
    "h": 238.407,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.37048,
    "c": 0.17373,
    "h": 272.9
  },
  "luminance": 0.04479
}

Semantic roles & 50–950 ramp

primary

#282B99

secondary

#BDBA60

accent

#DE46E2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #282B99

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

Preview Lab → · Contrast checker → · Palette generator →