#4375CF#4375CF

#4375CF is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.3% C 0.149 H 261.1°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4375CF
RGB	rgb(67, 117, 207)
HSL	hsl(219, 59%, 54%)
HSV	hsv(219, 68%, 81%)
CMYK	cmyk(67.6%, 43.5%, 0%, 18.8%)
CIE-LAB	lab(50.00, 12.59, -51.55)
CIE-LCH	lch(50.00, 53.07, 283.72°)
OKLab	oklab(57.3% -0.0229 -0.1473)
OKLCH	oklch(57.3% 0.149 261.1)
XYZ	xyz(19.9345, 18.4189, 61.5240)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4375CF #CF9D43

analogous

#43BBCF #4375CF #5743CF

triadic

#4375CF #CF4375 #75CF43

tetradic

#4375CF #CF43BB #CF9D43 #43CF57

square

#4375CF #CF43BB #CF9D43 #43CF57

split-complementary

#4375CF #CF5743 #BBCF43

monochromatic

#1F3F79 #2B58AA #4375CF #7499DB #A5BDE8

Accessibility & contrast

On white

4.48

#4375CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#4375CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4375CF

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4375CF	#FFFFFF	#000000	##000000
##4375CF	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7ED2

Deuteranopia (green-blind)

#3271CD

Tritanopia (blue-blind)

#008A98

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4375cf;
/* rgb */ color: rgb(67, 117, 207);
/* oklch */ color: oklch(57.3% 0.149 261.1);

Tailwind

colors: {
  custom: {
    50: '#869cde',
    500: '#4375cf',
    950: '#000000',
  },
}

SCSS

$custom: #4375cf;
$custom-light: #869cde;
$custom-dark: #000000;

JSON

{
  "hex": "#4375cf",
  "rgb": {
    "r": 67,
    "g": 117,
    "b": 207
  },
  "hsl": {
    "h": 218.571,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.57297,
    "c": 0.14908,
    "h": 261.1
  },
  "luminance": 0.18421
}

Semantic roles & 50–950 ramp

primary

#4375CF

secondary

#D5BF99

accent

#AA45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4375CF

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

Preview Lab → · Contrast checker → · Palette generator →