#4375CC#4375CC

#4375CC is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.1% C 0.145 H 260.7°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4375CC
RGB	rgb(67, 117, 204)
HSL	hsl(218, 57%, 53%)
HSV	hsv(218, 67%, 80%)
CMYK	cmyk(67.2%, 42.6%, 0%, 20%)
CIE-LAB	lab(49.83, 11.52, -50.12)
CIE-LCH	lch(49.83, 51.43, 282.94°)
OKLab	oklab(57.11% -0.0235 -0.1431)
OKLCH	oklch(57.11% 0.145 260.7)
XYZ	xyz(19.5712, 18.2736, 59.6108)
Luminance	0.1828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4375CC #CC9A43

analogous

#43B9CC #4375CC #5543CC

triadic

#4375CC #CC4375 #75CC43

tetradic

#4375CC #CC43B9 #CC9A43 #43CC55

square

#4375CC #CC43B9 #CC9A43 #43CC55

split-complementary

#4375CC #CC5543 #B9CC43

monochromatic

#203F75 #2D59A5 #4375CC #7398D9 #A3BCE6

Accessibility & contrast

On white

4.51

#4375CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#4375CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4375CC

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4375CC	#FFFFFF	#000000	##000000
##4375CC	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7DCF

Deuteranopia (green-blind)

#3571CA

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4375cc;
/* rgb */ color: rgb(67, 117, 204);
/* oklch */ color: oklch(57.1% 0.145 260.7);

Tailwind

colors: {
  custom: {
    50: '#859cdc',
    500: '#4375cc',
    950: '#000000',
  },
}

SCSS

$custom: #4375cc;
$custom-light: #859cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#4375cc",
  "rgb": {
    "r": 67,
    "g": 117,
    "b": 204
  },
  "hsl": {
    "h": 218.102,
    "s": 57.322,
    "l": 53.137
  },
  "oklch": {
    "l": 0.57106,
    "c": 0.14501,
    "h": 260.7
  },
  "luminance": 0.18276
}

Semantic roles & 50–950 ramp

primary

#4375CC

secondary

#D3BD98

accent

#A947E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4375CC

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

Preview Lab → · Contrast checker → · Palette generator →