#4375C9#4375C9

#4375C9 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 56.9% C 0.141 H 260.2°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4375C9
RGB	rgb(67, 117, 201)
HSL	hsl(218, 55%, 53%)
HSV	hsv(218, 67%, 79%)
CMYK	cmyk(66.7%, 41.8%, 0%, 21.2%)
CIE-LAB	lab(49.65, 10.46, -48.68)
CIE-LCH	lch(49.65, 49.79, 282.12°)
OKLab	oklab(56.92% -0.0241 -0.1389)
OKLCH	oklch(56.92% 0.141 260.2)
XYZ	xyz(19.2149, 18.1310, 57.7340)
Luminance	0.1813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4375C9 #C99743

analogous

#43B8C9 #4375C9 #5443C9

triadic

#4375C9 #C94375 #75C943

tetradic

#4375C9 #C943B8 #C99743 #43C954

square

#4375C9 #C943B8 #C99743 #43C954

split-complementary

#4375C9 #C95443 #B8C943

monochromatic

#203F71 #2E59A1 #4375C9 #7398D7 #A2BBE4

Accessibility & contrast

On white

4.54

#4375C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#4375C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4375C9

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4375C9	#FFFFFF	#000000	##000000
##4375C9	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7DCC

Deuteranopia (green-blind)

#3970C7

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4375c9;
/* rgb */ color: rgb(67, 117, 201);
/* oklch */ color: oklch(56.9% 0.141 260.2);

Tailwind

colors: {
  custom: {
    50: '#859cda',
    500: '#4375c9',
    950: '#000000',
  },
}

SCSS

$custom: #4375c9;
$custom-light: #859cda;
$custom-dark: #000000;

JSON

{
  "hex": "#4375c9",
  "rgb": {
    "r": 67,
    "g": 117,
    "b": 201
  },
  "hsl": {
    "h": 217.612,
    "s": 55.372,
    "l": 52.549
  },
  "oklch": {
    "l": 0.56918,
    "c": 0.14095,
    "h": 260.2
  },
  "luminance": 0.18133
}

Semantic roles & 50–950 ramp

primary

#4375C9

secondary

#D1BB97

accent

#A749DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4375C9

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

Preview Lab → · Contrast checker → · Palette generator →