#282FB3#282FB3

#282FB3 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.4% C 0.202 H 270.8°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#282FB3
RGB	rgb(40, 47, 179)
HSL	hsl(237, 63%, 43%)
HSV	hsv(237, 78%, 70%)
CMYK	cmyk(77.7%, 73.7%, 0%, 29.8%)
CIE-LAB	lab(28.74, 43.39, -69.84)
CIE-LCH	lch(28.74, 82.23, 301.85°)
OKLab	oklab(40.39% 0.0028 -0.2022)
OKLCH	oklch(40.39% 0.202 270.8)
XYZ	xyz(10.0255, 5.7377, 43.2182)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.42

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282FB3 #B3AC28

analogous

#2875B3 #282FB3 #6628B3

triadic

#282FB3 #B3282F #2FB328

tetradic

#282FB3 #B32875 #B3AC28 #28B366

square

#282FB3 #B32875 #B3AC28 #28B366

split-complementary

#282FB3 #B36628 #75B328

monochromatic

#12154F #1D2281 #282FB3 #434BD5 #757BE0

Accessibility & contrast

On white

9.78

#282FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#282FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282FB3

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282FB3	#FFFFFF	#000000	##FFFFFF
##282FB3	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB7

Deuteranopia (green-blind)

#003DB1

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #282fb3;
/* rgb */ color: rgb(40, 47, 179);
/* oklch */ color: oklch(40.4% 0.202 270.8);

Tailwind

colors: {
  custom: {
    50: '#7a69cb',
    500: '#282fb3',
    950: '#000000',
  },
}

SCSS

$custom: #282fb3;
$custom-light: #7a69cb;
$custom-dark: #000000;

JSON

{
  "hex": "#282fb3",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 179
  },
  "hsl": {
    "h": 236.978,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40389,
    "c": 0.20226,
    "h": 270.8
  },
  "luminance": 0.05739
}

Semantic roles & 50–950 ramp

primary

#282FB3

secondary

#C8C36F

accent

#DE41E6

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #282FB3

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

Preview Lab → · Contrast checker → · Palette generator →