#4375BF#4375BF

#4375BF is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.3% C 0.127 H 258.1°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4375BF
RGB	rgb(67, 117, 191)
HSL	hsl(216, 49%, 51%)
HSV	hsv(216, 65%, 75%)
CMYK	cmyk(64.9%, 38.7%, 0%, 25.1%)
CIE-LAB	lab(49.10, 6.93, -43.83)
CIE-LCH	lch(49.10, 44.37, 278.99°)
OKLab	oklab(56.31% -0.0263 -0.1246)
OKLCH	oklch(56.31% 0.127 258.1)
XYZ	xyz(18.0766, 17.6757, 51.7392)
Luminance	0.1768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4375BF #BF8D43

analogous

#43B3BF #4375BF #4F43BF

triadic

#4375BF #BF4375 #75BF43

tetradic

#4375BF #BF43B3 #BF8D43 #43BF4F

square

#4375BF #BF43B3 #BF8D43 #43BF4F

split-complementary

#4375BF #BF4F43 #B3BF43

monochromatic

#223D65 #325993 #4375BF #7197CF #9EB8DE

Accessibility & contrast

On white

4.63

#4375BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#4375BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4375BF

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

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

Color blindness preview

Protanopia (red-blind)

#547BC2

Deuteranopia (green-blind)

#426FBD

Tritanopia (blue-blind)

#008691

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4375bf;
/* rgb */ color: rgb(67, 117, 191);
/* oklch */ color: oklch(56.3% 0.127 258.1);

Tailwind

colors: {
  custom: {
    50: '#839cd3',
    500: '#4375bf',
    950: '#000000',
  },
}

SCSS

$custom: #4375bf;
$custom-light: #839cd3;
$custom-dark: #000000;

JSON

{
  "hex": "#4375bf",
  "rgb": {
    "r": 67,
    "g": 117,
    "b": 191
  },
  "hsl": {
    "h": 215.806,
    "s": 49.206,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56308,
    "c": 0.12738,
    "h": 258.1
  },
  "luminance": 0.17677
}

Semantic roles & 50–950 ramp

primary

#4375BF

secondary

#CAB493

accent

#A14FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4375BF

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

Preview Lab → · Contrast checker → · Palette generator →