#4377CB#4377CB

#4377CB is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.5% C 0.141 H 259.6°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#4377CB
RGB	rgb(67, 119, 203)
HSL	hsl(217, 57%, 53%)
HSV	hsv(217, 67%, 80%)
CMYK	cmyk(67%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.33, 9.93, -48.74)
CIE-LCH	lch(50.33, 49.75, 281.51°)
OKLab	oklab(57.48% -0.0256 -0.139)
OKLCH	oklch(57.48% 0.141 259.6)
XYZ	xyz(19.6872, 18.6968, 59.0596)
Luminance	0.1870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4377CB #CB9743

analogous

#43BBCB #4377CB #5343CB

triadic

#4377CB #CB4377 #77CB43

tetradic

#4377CB #CB43BB #CB9743 #43CB53

square

#4377CB #CB43BB #CB9743 #43CB53

split-complementary

#4377CB #CB5343 #BBCB43

monochromatic

#204074 #2D5AA4 #4377CB #739AD8 #A3BCE6

Accessibility & contrast

On white

4.43

#4377CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#4377CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4377CB

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4377CB	#FFFFFF	#000000	##000000
##4377CB	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#507FCE

Deuteranopia (green-blind)

#3B72C9

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4377cb;
/* rgb */ color: rgb(67, 119, 203);
/* oklch */ color: oklch(57.5% 0.141 259.6);

Tailwind

colors: {
  custom: {
    50: '#859ddb',
    500: '#4377cb',
    950: '#000000',
  },
}

SCSS

$custom: #4377cb;
$custom-light: #859ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#4377cb",
  "rgb": {
    "r": 67,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 217.059,
    "s": 56.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.57478,
    "c": 0.14137,
    "h": 259.6
  },
  "luminance": 0.18699
}

Semantic roles & 50–950 ramp

primary

#4377CB

secondary

#D2BC98

accent

#A648E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4377CB

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

Preview Lab → · Contrast checker → · Palette generator →