#4277E7#4277E7

#4277E7 is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.3% C 0.179 H 263.0°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#4277E7
RGB	rgb(66, 119, 231)
HSL	hsl(221, 77%, 58%)
HSV	hsv(221, 71%, 91%)
CMYK	cmyk(71.4%, 48.5%, 0%, 9.4%)
CIE-LAB	lab(51.97, 19.78, -61.95)
CIE-LCH	lch(51.97, 65.03, 287.71°)
OKLab	oklab(59.27% -0.0217 -0.1779)
OKLCH	oklch(59.27% 0.179 263)
XYZ	xyz(23.2623, 20.1189, 78.2432)
Luminance	0.2012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277E7 #E7B242

analogous

#42CAE7 #4277E7 #5F42E7

triadic

#4277E7 #E74277 #77E742

tetradic

#4277E7 #E742CA #E7B242 #42E75F

square

#4277E7 #E742CA #E7B242 #42E75F

split-complementary

#4277E7 #E75F42 #CAE742

monochromatic

#143F9B #1B55D1 #4277E7 #789EEE #AFC5F5

Accessibility & contrast

On white

4.18

#4277E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#4277E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277E7

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277E7	#FFFFFF	#000000	##000000
##4277E7	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3784EB

Deuteranopia (green-blind)

#0075E5

Tritanopia (blue-blind)

#0092A4

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4277e7;
/* rgb */ color: rgb(66, 119, 231);
/* oklch */ color: oklch(59.3% 0.179 263.0);

Tailwind

colors: {
  custom: {
    50: '#8a9def',
    500: '#4277e7',
    950: '#000000',
  },
}

SCSS

$custom: #4277e7;
$custom-light: #8a9def;
$custom-dark: #000000;

JSON

{
  "hex": "#4277e7",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 231
  },
  "hsl": {
    "h": 220.727,
    "s": 77.465,
    "l": 58.235
  },
  "oklch": {
    "l": 0.5927,
    "c": 0.17918,
    "h": 263
  },
  "luminance": 0.20121
}

Semantic roles & 50–950 ramp

primary

#4277E7

secondary

#E3CEA2

accent

#B634F4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4277E7

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

Preview Lab → · Contrast checker → · Palette generator →