#4281DA#4281DA

#4281DA is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.5% C 0.151 H 257.4°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#4281DA
RGB	rgb(66, 129, 218)
HSL	hsl(215, 67%, 56%)
HSV	hsv(215, 70%, 85%)
CMYK	cmyk(69.7%, 40.8%, 0%, 14.5%)
CIE-LAB	lab(53.94, 8.97, -51.49)
CIE-LCH	lch(53.94, 52.26, 279.88°)
OKLab	oklab(60.54% -0.0327 -0.1469)
OKLCH	oklch(60.54% 0.151 257.4)
XYZ	xyz(22.7473, 21.9183, 69.3479)
Luminance	0.2192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281DA #DA9B42

analogous

#42CDDA #4281DA #4F42DA

triadic

#4281DA #DA4281 #81DA42

tetradic

#4281DA #DA42CD #DA9B42 #42DA4F

square

#4281DA #DA42CD #DA9B42 #42DA4F

split-complementary

#4281DA #DA4F42 #CDDA42

monochromatic

#1A4887 #2463BA #4281DA #75A3E4 #A8C5EE

Accessibility & contrast

On white

3.90

#4281DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#4281DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281DA

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281DA	#FFFFFF	#000000	##000000
##4281DA	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5789DE

Deuteranopia (green-blind)

#3F7AD8

Tritanopia (blue-blind)

#0096A3

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4281da;
/* rgb */ color: rgb(66, 129, 218);
/* oklch */ color: oklch(60.5% 0.151 257.4);

Tailwind

colors: {
  custom: {
    50: '#87a5e6',
    500: '#4281da',
    950: '#000000',
  },
}

SCSS

$custom: #4281da;
$custom-light: #87a5e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4281da",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 218
  },
  "hsl": {
    "h": 215.132,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.60537,
    "c": 0.15055,
    "h": 257.4
  },
  "luminance": 0.21921
}

Semantic roles & 50–950 ramp

primary

#4281DA

secondary

#DBC19C

accent

#A33EEA

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4281DA

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

Preview Lab → · Contrast checker → · Palette generator →