#282D99#282D99

#282D99 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.4% C 0.172 H 272.5°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#282D99
RGB	rgb(40, 45, 153)
HSL	hsl(237, 59%, 38%)
HSV	hsv(237, 74%, 60%)
CMYK	cmyk(73.9%, 70.6%, 0%, 40%)
CIE-LAB	lab(25.64, 35.54, -59.24)
CIE-LCH	lch(25.64, 69.08, 300.96°)
OKLab	oklab(37.37% 0.0075 -0.1713)
OKLCH	oklch(37.37% 0.172 272.5)
XYZ	xyz(7.5613, 4.6270, 30.6254)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282D99 #999428

analogous

#286599 #282D99 #5B2899

triadic

#282D99 #99282D #2D9928

tetradic

#282D99 #992865 #999428 #28995B

square

#282D99 #992865 #999428 #28995B

split-complementary

#282D99 #995B28 #659928

monochromatic

#0F1038 #1B1F68 #282D99 #353BCA #656AD7

Accessibility & contrast

On white

10.91

#282D99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#282D99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282D99

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282D99	#FFFFFF	#000000	##FFFFFF
##282D99	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429C

Deuteranopia (green-blind)

#003797

Tritanopia (blue-blind)

#004B5F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #282d99;
/* rgb */ color: rgb(40, 45, 153);
/* oklch */ color: oklch(37.4% 0.172 272.5);

Tailwind

colors: {
  custom: {
    50: '#7466b8',
    500: '#282d99',
    950: '#000000',
  },
}

SCSS

$custom: #282d99;
$custom-light: #7466b8;
$custom-dark: #000000;

JSON

{
  "hex": "#282d99",
  "rgb": {
    "r": 40,
    "g": 45,
    "b": 153
  },
  "hsl": {
    "h": 237.345,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.37373,
    "c": 0.1715,
    "h": 272.5
  },
  "luminance": 0.04628
}

Semantic roles & 50–950 ramp

primary

#282D99

secondary

#BDB860

accent

#DB46E2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #282D99

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

Preview Lab → · Contrast checker → · Palette generator →