#4375B1#4375B1

#4375B1 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.5% C 0.109 H 254.1°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4375B1
RGB	rgb(67, 117, 177)
HSL	hsl(213, 45%, 48%)
HSV	hsv(213, 62%, 69%)
CMYK	cmyk(62.1%, 33.9%, 0%, 30.6%)
CIE-LAB	lab(48.37, 2.07, -36.89)
CIE-LCH	lch(48.37, 36.95, 273.22°)
OKLab	oklab(55.5% -0.0298 -0.1044)
OKLCH	oklch(55.5% 0.109 254.1)
XYZ	xyz(16.6090, 17.0887, 44.0096)
Luminance	0.1709 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4375B1 #B17F43

analogous

#43ACB1 #4375B1 #4843B1

triadic

#4375B1 #B14375 #75B143

tetradic

#4375B1 #B143AC #B17F43 #43B148

square

#4375B1 #B143AC #B17F43 #43B148

split-complementary

#4375B1 #B14843 #ACB143

monochromatic

#213A58 #325885 #4375B1 #6A94C7 #97B4D8

Accessibility & contrast

On white

4.75

#4375B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#4375B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4375B1

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4375B1	#FFFFFF	#000000	##FFFFFF
##4375B1	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B79B4

Deuteranopia (green-blind)

#4D6EB0

Tritanopia (blue-blind)

#00838B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4375b1;
/* rgb */ color: rgb(67, 117, 177);
/* oklch */ color: oklch(55.5% 0.109 254.1);

Tailwind

colors: {
  custom: {
    50: '#819cc8',
    500: '#4375b1',
    950: '#000000',
  },
}

SCSS

$custom: #4375b1;
$custom-light: #819cc8;
$custom-dark: #000000;

JSON

{
  "hex": "#4375b1",
  "rgb": {
    "r": 67,
    "g": 117,
    "b": 177
  },
  "hsl": {
    "h": 212.727,
    "s": 45.082,
    "l": 47.843
  },
  "oklch": {
    "l": 0.55502,
    "c": 0.10853,
    "h": 254.1
  },
  "luminance": 0.1709
}

Semantic roles & 50–950 ramp

primary

#4375B1

secondary

#C3AA8C

accent

#9A53D5

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4375B1

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

Preview Lab → · Contrast checker → · Palette generator →