#4277CF#4277CF

#4277CF is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.7% C 0.147 H 260.0°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#4277CF
RGB	rgb(66, 119, 207)
HSL	hsl(217, 59%, 54%)
HSV	hsv(217, 68%, 81%)
CMYK	cmyk(68.1%, 42.5%, 0%, 18.8%)
CIE-LAB	lab(50.52, 11.19, -50.73)
CIE-LCH	lch(50.52, 51.95, 282.44°)
OKLab	oklab(57.68% -0.0256 -0.1449)
OKLCH	oklch(57.68% 0.147 260)
XYZ	xyz(20.1020, 18.8549, 61.5993)
Luminance	0.1886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277CF #CF9A42

analogous

#42BDCF #4277CF #5342CF

triadic

#4277CF #CF4277 #77CF42

tetradic

#4277CF #CF42BD #CF9A42 #42CF53

square

#4277CF #CF42BD #CF9A42 #42CF53

split-complementary

#4277CF #CF5342 #BDCF42

monochromatic

#1F4078 #2B5AA9 #4277CF #739ADB #A4BDE8

Accessibility & contrast

On white

4.40

#4277CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#4277CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277CF

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277CF	#FFFFFF	#000000	##000000
##4277CF	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7FD2

Deuteranopia (green-blind)

#3672CD

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4277cf;
/* rgb */ color: rgb(66, 119, 207);
/* oklch */ color: oklch(57.7% 0.147 260.0);

Tailwind

colors: {
  custom: {
    50: '#869dde',
    500: '#4277cf',
    950: '#000000',
  },
}

SCSS

$custom: #4277cf;
$custom-light: #869dde;
$custom-dark: #000000;

JSON

{
  "hex": "#4277cf",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 207
  },
  "hsl": {
    "h": 217.447,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.57684,
    "c": 0.14712,
    "h": 260
  },
  "luminance": 0.18857
}

Semantic roles & 50–950 ramp

primary

#4277CF

secondary

#D5BE98

accent

#A745E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4277CF

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

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