#4377CF#4377CF

#4377CF is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.7% C 0.147 H 260.3°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#4377CF
RGB	rgb(67, 119, 207)
HSL	hsl(218, 59%, 54%)
HSV	hsv(218, 68%, 81%)
CMYK	cmyk(67.6%, 42.5%, 0%, 18.8%)
CIE-LAB	lab(50.56, 11.35, -50.66)
CIE-LCH	lch(50.56, 51.92, 282.62°)
OKLab	oklab(57.73% -0.0248 -0.1446)
OKLCH	oklch(57.73% 0.147 260.3)
XYZ	xyz(20.1700, 18.8899, 61.6025)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4377CF #CF9B43

analogous

#43BDCF #4377CF #5543CF

triadic

#4377CF #CF4377 #77CF43

tetradic

#4377CF #CF43BD #CF9B43 #43CF55

square

#4377CF #CF43BD #CF9B43 #43CF55

split-complementary

#4377CF #CF5543 #BDCF43

monochromatic

#1F4079 #2B5AAA #4377CF #749ADB #A5BEE8

Accessibility & contrast

On white

4.39

#4377CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#4377CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4377CF

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4377CF	#FFFFFF	#000000	##000000
##4377CF	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	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: #4377cf;
/* rgb */ color: rgb(67, 119, 207);
/* oklch */ color: oklch(57.7% 0.147 260.3);

Tailwind

colors: {
  custom: {
    50: '#869dde',
    500: '#4377cf',
    950: '#000000',
  },
}

SCSS

$custom: #4377cf;
$custom-light: #869dde;
$custom-dark: #000000;

JSON

{
  "hex": "#4377cf",
  "rgb": {
    "r": 67,
    "g": 119,
    "b": 207
  },
  "hsl": {
    "h": 217.714,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.57728,
    "c": 0.14677,
    "h": 260.3
  },
  "luminance": 0.18892
}

Semantic roles & 50–950 ramp

primary

#4377CF

secondary

#D5BF99

accent

#A845E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4377CF

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

Preview Lab → · Contrast checker → · Palette generator →