#4C81E3#4C81E3

#4C81E3 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.5% C 0.159 H 261.5°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#4C81E3
RGB	rgb(76, 129, 227)
HSL	hsl(219, 73%, 59%)
HSV	hsv(219, 67%, 89%)
CMYK	cmyk(66.5%, 43.2%, 0%, 11%)
CIE-LAB	lab(54.85, 13.66, -55.07)
CIE-LCH	lch(54.85, 56.74, 283.94°)
OKLab	oklab(61.51% -0.0234 -0.1573)
OKLCH	oklch(61.51% 0.159 261.5)
XYZ	xyz(24.6910, 22.7806, 75.7540)
Luminance	0.2278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C81E3 #E3AE4C

analogous

#4CCDE3 #4C81E3 #624CE3

triadic

#4C81E3 #E34C81 #81E34C

tetradic

#4C81E3 #E34CCD #E3AE4C #4CE362

square

#4C81E3 #E34CCD #E3AE4C #4CE362

split-complementary

#4C81E3 #E3624C #CDE34C

monochromatic

#18479C #215FD1 #4C81E3 #81A6EB #B6CCF4

Accessibility & contrast

On white

3.78

#4C81E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#4C81E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C81E3

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C81E3	#FFFFFF	#000000	##000000
##4C81E3	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#528BE7

Deuteranopia (green-blind)

#397DE1

Tritanopia (blue-blind)

#0098A7

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4c81e3;
/* rgb */ color: rgb(76, 129, 227);
/* oklch */ color: oklch(61.5% 0.159 261.5);

Tailwind

colors: {
  custom: {
    50: '#8da5ec',
    500: '#4c81e3',
    950: '#000000',
  },
}

SCSS

$custom: #4c81e3;
$custom-light: #8da5ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4c81e3",
  "rgb": {
    "r": 76,
    "g": 129,
    "b": 227
  },
  "hsl": {
    "h": 218.94,
    "s": 72.947,
    "l": 59.412
  },
  "oklch": {
    "l": 0.61512,
    "c": 0.15905,
    "h": 261.5
  },
  "luminance": 0.22783
}

Semantic roles & 50–950 ramp

primary

#4C81E3

secondary

#E3CEA8

accent

#AF38F0

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4C81E3

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

Preview Lab → · Contrast checker → · Palette generator →