#282FB1#282FB1

#282FB1 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.2% C 0.200 H 270.9°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#282FB1
RGB	rgb(40, 47, 177)
HSL	hsl(237, 63%, 43%)
HSV	hsv(237, 77%, 69%)
CMYK	cmyk(77.4%, 73.4%, 0%, 30.6%)
CIE-LAB	lab(28.53, 42.71, -69.00)
CIE-LCH	lch(28.53, 81.15, 301.76°)
OKLab	oklab(40.18% 0.0031 -0.1998)
OKLCH	oklch(40.18% 0.2 270.9)
XYZ	xyz(9.8247, 5.6574, 42.1606)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.58

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282FB1 #B1AA28

analogous

#2874B1 #282FB1 #6528B1

triadic

#282FB1 #B1282F #2FB128

tetradic

#282FB1 #B12874 #B1AA28 #28B165

square

#282FB1 #B12874 #B1AA28 #28B165

split-complementary

#282FB1 #B16528 #74B128

monochromatic

#11144D #1D227F #282FB1 #4249D4 #7479E0

Accessibility & contrast

On white

9.85

#282FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#282FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282FB1

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282FB1	#FFFFFF	#000000	##FFFFFF
##282FB1	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB5

Deuteranopia (green-blind)

#003CAF

Tritanopia (blue-blind)

#00546D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #282fb1;
/* rgb */ color: rgb(40, 47, 177);
/* oklch */ color: oklch(40.2% 0.200 270.9);

Tailwind

colors: {
  custom: {
    50: '#7a69ca',
    500: '#282fb1',
    950: '#000000',
  },
}

SCSS

$custom: #282fb1;
$custom-light: #7a69ca;
$custom-dark: #000000;

JSON

{
  "hex": "#282fb1",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 177
  },
  "hsl": {
    "h": 236.934,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40177,
    "c": 0.1998,
    "h": 270.9
  },
  "luminance": 0.05658
}

Semantic roles & 50–950 ramp

primary

#282FB1

secondary

#C7C26E

accent

#DE42E6

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #282FB1

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

Preview Lab → · Contrast checker → · Palette generator →