#4371C0#4371C0

#4371C0 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.5% C 0.133 H 260.5°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#4371C0
RGB	rgb(67, 113, 192)
HSL	hsl(218, 50%, 51%)
HSV	hsv(218, 65%, 75%)
CMYK	cmyk(65.1%, 41.1%, 0%, 24.7%)
CIE-LAB	lab(48.02, 9.76, -46.13)
CIE-LCH	lch(48.02, 47.15, 281.95°)
OKLab	oklab(55.49% -0.022 -0.1314)
OKLCH	oklch(55.49% 0.133 260.5)
XYZ	xyz(17.7309, 16.8076, 52.1687)
Luminance	0.1681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371C0 #C09243

analogous

#43AFC0 #4371C0 #5343C0

triadic

#4371C0 #C04371 #71C043

tetradic

#4371C0 #C043AF #C09243 #43C053

square

#4371C0 #C043AF #C09243 #43C053

split-complementary

#4371C0 #C05343 #AFC043

monochromatic

#223B66 #325694 #4371C0 #7194CF #9FB6DF

Accessibility & contrast

On white

4.81

#4371C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#4371C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4371C0

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371C0	#FFFFFF	#000000	##FFFFFF
##4371C0	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D78C3

Deuteranopia (green-blind)

#3A6DBE

Tritanopia (blue-blind)

#00838F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4371c0;
/* rgb */ color: rgb(67, 113, 192);
/* oklch */ color: oklch(55.5% 0.133 260.5);

Tailwind

colors: {
  custom: {
    50: '#8399d3',
    500: '#4371c0',
    950: '#000000',
  },
}

SCSS

$custom: #4371c0;
$custom-light: #8399d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4371c0",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 192
  },
  "hsl": {
    "h": 217.92,
    "s": 49.801,
    "l": 50.784
  },
  "oklch": {
    "l": 0.55486,
    "c": 0.13325,
    "h": 260.5
  },
  "luminance": 0.16809
}

Semantic roles & 50–950 ramp

primary

#4371C0

secondary

#CBB794

accent

#A64ED9

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #4371C0

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

Preview Lab → · Contrast checker → · Palette generator →