#4375CB#4375CB

#4375CB is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.0% C 0.144 H 260.5°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#4375CB
RGB	rgb(67, 117, 203)
HSL	hsl(218, 57%, 53%)
HSV	hsv(218, 67%, 80%)
CMYK	cmyk(67%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(49.77, 11.17, -49.64)
CIE-LCH	lch(49.77, 50.88, 282.68°)
OKLab	oklab(57.04% -0.0237 -0.1417)
OKLCH	oklch(57.04% 0.144 260.5)
XYZ	xyz(19.4517, 18.2257, 58.9811)
Luminance	0.1823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4375CB #CB9943

analogous

#43B9CB #4375CB #5543CB

triadic

#4375CB #CB4375 #75CB43

tetradic

#4375CB #CB43B9 #CB9943 #43CB55

square

#4375CB #CB43B9 #CB9943 #43CB55

split-complementary

#4375CB #CB5543 #B9CB43

monochromatic

#203F74 #2D59A4 #4375CB #7398D8 #A3BBE6

Accessibility & contrast

On white

4.52

#4375CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#4375CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4375CB

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4375CB	#FFFFFF	#000000	##000000
##4375CB	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7DCE

Deuteranopia (green-blind)

#3771C9

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4375cb;
/* rgb */ color: rgb(67, 117, 203);
/* oklch */ color: oklch(57.0% 0.144 260.5);

Tailwind

colors: {
  custom: {
    50: '#859cdb',
    500: '#4375cb',
    950: '#000000',
  },
}

SCSS

$custom: #4375cb;
$custom-light: #859cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4375cb",
  "rgb": {
    "r": 67,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 217.941,
    "s": 56.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.57043,
    "c": 0.14366,
    "h": 260.5
  },
  "luminance": 0.18228
}

Semantic roles & 50–950 ramp

primary

#4375CB

secondary

#D2BD98

accent

#A848E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4375CB

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

Preview Lab → · Contrast checker → · Palette generator →