#4371C7#4371C7

#4371C7 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.9% C 0.143 H 261.7°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4371C7
RGB	rgb(67, 113, 199)
HSL	hsl(219, 54%, 52%)
HSV	hsv(219, 66%, 78%)
CMYK	cmyk(66.3%, 43.2%, 0%, 22%)
CIE-LAB	lab(48.42, 12.23, -49.51)
CIE-LCH	lch(48.42, 51.00, 283.88°)
OKLab	oklab(55.93% -0.0206 -0.1414)
OKLCH	oklch(55.93% 0.143 261.7)
XYZ	xyz(18.5250, 17.1253, 56.3510)
Luminance	0.1713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371C7 #C79943

analogous

#43B3C7 #4371C7 #5743C7

triadic

#4371C7 #C74371 #71C743

tetradic

#4371C7 #C743B3 #C79943 #43C757

square

#4371C7 #C743B3 #C79943 #43C757

split-complementary

#4371C7 #C75743 #B3C743

monochromatic

#213C6F #2F569E #4371C7 #7295D5 #A1B8E3

Accessibility & contrast

On white

4.75

#4371C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#4371C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4371C7

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371C7	#FFFFFF	#000000	##FFFFFF
##4371C7	1.00	4.75	4.43	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#487ACA

Deuteranopia (green-blind)

#336DC5

Tritanopia (blue-blind)

#008592

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4371c7;
/* rgb */ color: rgb(67, 113, 199);
/* oklch */ color: oklch(55.9% 0.143 261.7);

Tailwind

colors: {
  custom: {
    50: '#8599d8',
    500: '#4371c7',
    950: '#000000',
  },
}

SCSS

$custom: #4371c7;
$custom-light: #8599d8;
$custom-dark: #000000;

JSON

{
  "hex": "#4371c7",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 199
  },
  "hsl": {
    "h": 219.091,
    "s": 54.098,
    "l": 52.157
  },
  "oklch": {
    "l": 0.55925,
    "c": 0.14285,
    "h": 261.7
  },
  "luminance": 0.17127
}

Semantic roles & 50–950 ramp

primary

#4371C7

secondary

#D0BC96

accent

#AA4ADD

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #4371C7

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

Preview Lab → · Contrast checker → · Palette generator →