#4277E0#4277E0

#4277E0 is a mid, vivid blue. Relative luminance 0.197; OKLCH L 58.8% C 0.170 H 262.3°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#4277E0
RGB	rgb(66, 119, 224)
HSL	hsl(220, 72%, 57%)
HSV	hsv(220, 71%, 88%)
CMYK	cmyk(70.5%, 46.9%, 0%, 12.2%)
CIE-LAB	lab(51.53, 17.27, -58.72)
CIE-LCH	lch(51.53, 61.21, 286.39°)
OKLab	oklab(58.79% -0.0227 -0.1684)
OKLCH	oklch(58.79% 0.17 262.3)
XYZ	xyz(22.2933, 19.7314, 73.1402)
Luminance	0.1973 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277E0 #E0AB42

analogous

#42C6E0 #4277E0 #5C42E0

triadic

#4277E0 #E04277 #77E042

tetradic

#4277E0 #E042C6 #E0AB42 #42E05C

square

#4277E0 #E042C6 #E0AB42 #42E05C

split-complementary

#4277E0 #E05C42 #C6E042

monochromatic

#184090 #2057C5 #4277E0 #779DE9 #ABC3F1

Accessibility & contrast

On white

4.25

#4277E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#4277E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277E0

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277E0	#FFFFFF	#000000	##000000
##4277E0	1.00	4.25	4.95	4.95
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F83E4

Deuteranopia (green-blind)

#1874DE

Tritanopia (blue-blind)

#0090A1

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4277e0;
/* rgb */ color: rgb(66, 119, 224);
/* oklch */ color: oklch(58.8% 0.170 262.3);

Tailwind

colors: {
  custom: {
    50: '#899dea',
    500: '#4277e0',
    950: '#000000',
  },
}

SCSS

$custom: #4277e0;
$custom-light: #899dea;
$custom-dark: #000000;

JSON

{
  "hex": "#4277e0",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 224
  },
  "hsl": {
    "h": 219.873,
    "s": 71.818,
    "l": 56.863
  },
  "oklch": {
    "l": 0.58793,
    "c": 0.16989,
    "h": 262.3
  },
  "luminance": 0.19734
}

Semantic roles & 50–950 ramp

primary

#4277E0

secondary

#DFCA9F

accent

#B239EF

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4277E0

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

Preview Lab → · Contrast checker → · Palette generator →