#282FA5#282FA5

#282FA5 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.9% C 0.185 H 271.5°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#282FA5
RGB	rgb(40, 47, 165)
HSL	hsl(237, 61%, 40%)
HSV	hsv(237, 76%, 65%)
CMYK	cmyk(75.8%, 71.5%, 0%, 35.3%)
CIE-LAB	lab(27.30, 38.55, -63.82)
CIE-LCH	lch(27.30, 74.56, 301.13°)
OKLab	oklab(38.92% 0.0048 -0.1847)
OKLCH	oklch(38.92% 0.185 271.5)
XYZ	xyz(8.6808, 5.1998, 36.1362)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282FA5 #A59E28

analogous

#286DA5 #282FA5 #5F28A5

triadic

#282FA5 #A5282F #2FA528

tetradic

#282FA5 #A5286D #A59E28 #28A55F

square

#282FA5 #A5286D #A59E28 #28A55F

split-complementary

#282FA5 #A55F28 #6DA528

monochromatic

#101342 #1C2174 #282FA5 #3B43CF #6C72DB

Accessibility & contrast

On white

10.29

#282FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#282FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282FA5

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282FA5	#FFFFFF	#000000	##FFFFFF
##282FA5	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A9

Deuteranopia (green-blind)

#003AA3

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #282fa5;
/* rgb */ color: rgb(40, 47, 165);
/* oklch */ color: oklch(38.9% 0.185 271.5);

Tailwind

colors: {
  custom: {
    50: '#7768c1',
    500: '#282fa5',
    950: '#000000',
  },
}

SCSS

$custom: #282fa5;
$custom-light: #7768c1;
$custom-dark: #000000;

JSON

{
  "hex": "#282fa5",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 165
  },
  "hsl": {
    "h": 236.64,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38924,
    "c": 0.18477,
    "h": 271.5
  },
  "luminance": 0.05201
}

Semantic roles & 50–950 ramp

primary

#282FA5

secondary

#C2BD67

accent

#DB44E4

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #282FA5

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

Preview Lab → · Contrast checker → · Palette generator →