#4371C5#4371C5

#4371C5 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.8% C 0.140 H 261.4°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#4371C5
RGB	rgb(67, 113, 197)
HSL	hsl(219, 53%, 52%)
HSV	hsv(219, 66%, 77%)
CMYK	cmyk(66%, 42.6%, 0%, 22.7%)
CIE-LAB	lab(48.30, 11.53, -48.55)
CIE-LCH	lch(48.30, 49.90, 283.36°)
OKLab	oklab(55.8% -0.021 -0.1385)
OKLCH	oklch(55.8% 0.14 261.4)
XYZ	xyz(18.2943, 17.0330, 55.1361)
Luminance	0.1704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371C5 #C59743

analogous

#43B2C5 #4371C5 #5643C5

triadic

#4371C5 #C54371 #71C543

tetradic

#4371C5 #C543B2 #C59743 #43C556

square

#4371C5 #C543B2 #C59743 #43C556

split-complementary

#4371C5 #C55643 #B2C543

monochromatic

#213C6C #30569B #4371C5 #7294D3 #A1B8E2

Accessibility & contrast

On white

4.77

#4371C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#4371C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4371C5

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371C5	#FFFFFF	#000000	##FFFFFF
##4371C5	1.00	4.77	4.41	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A79C8

Deuteranopia (green-blind)

#356DC3

Tritanopia (blue-blind)

#008491

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4371c5;
/* rgb */ color: rgb(67, 113, 197);
/* oklch */ color: oklch(55.8% 0.140 261.4);

Tailwind

colors: {
  custom: {
    50: '#8499d7',
    500: '#4371c5',
    950: '#000000',
  },
}

SCSS

$custom: #4371c5;
$custom-light: #8499d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4371c5",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 197
  },
  "hsl": {
    "h": 218.769,
    "s": 52.846,
    "l": 51.765
  },
  "oklch": {
    "l": 0.55798,
    "c": 0.14012,
    "h": 261.4
  },
  "luminance": 0.17035
}

Semantic roles & 50–950 ramp

primary

#4371C5

secondary

#CEBA95

accent

#A94CDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #4371C5

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

Preview Lab → · Contrast checker → · Palette generator →