#4281DE#4281DE

#4281DE is a mid, vivid blue. Relative luminance 0.221; OKLCH L 60.8% C 0.156 H 258.2°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#4281DE
RGB	rgb(66, 129, 222)
HSL	hsl(216, 70%, 56%)
HSV	hsv(216, 70%, 87%)
CMYK	cmyk(70.3%, 41.9%, 0%, 12.9%)
CIE-LAB	lab(54.16, 10.39, -53.38)
CIE-LCH	lch(54.16, 54.38, 281.01°)
OKLab	oklab(60.78% -0.0319 -0.1525)
OKLCH	oklch(60.78% 0.156 258.2)
XYZ	xyz(23.2771, 22.1302, 72.1379)
Luminance	0.2213 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281DE #DE9F42

analogous

#42CFDE #4281DE #5142DE

triadic

#4281DE #DE4281 #81DE42

tetradic

#4281DE #DE42CF #DE9F42 #42DE51

square

#4281DE #DE42CF #DE9F42 #42DE51

split-complementary

#4281DE #DE5142 #CFDE42

monochromatic

#19488D #2262C1 #4281DE #76A4E7 #AAC6F0

Accessibility & contrast

On white

3.87

#4281DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#4281DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281DE

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281DE	#FFFFFF	#000000	##000000
##4281DE	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5489E2

Deuteranopia (green-blind)

#3A7BDC

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4281de;
/* rgb */ color: rgb(66, 129, 222);
/* oklch */ color: oklch(60.8% 0.156 258.2);

Tailwind

colors: {
  custom: {
    50: '#88a5e9',
    500: '#4281de',
    950: '#000000',
  },
}

SCSS

$custom: #4281de;
$custom-light: #88a5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4281de",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 222
  },
  "hsl": {
    "h": 215.769,
    "s": 70.27,
    "l": 56.471
  },
  "oklch": {
    "l": 0.60784,
    "c": 0.1558,
    "h": 258.2
  },
  "luminance": 0.22133
}

Semantic roles & 50–950 ramp

primary

#4281DE

secondary

#DEC49E

accent

#A53BED

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4281DE

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

Preview Lab → · Contrast checker → · Palette generator →