#4571C5#4571C5

#4571C5 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.9% C 0.139 H 262.0°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4571C5
RGB	rgb(69, 113, 197)
HSL	hsl(219, 52%, 52%)
HSV	hsv(219, 65%, 77%)
CMYK	cmyk(65%, 42.6%, 0%, 22.7%)
CIE-LAB	lab(48.39, 11.87, -48.40)
CIE-LCH	lch(48.39, 49.83, 283.78°)
OKLab	oklab(55.89% -0.0193 -0.1381)
OKLCH	oklch(55.89% 0.139 262)
XYZ	xyz(18.4339, 17.1049, 55.1426)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4571C5 #C59945

analogous

#45B1C5 #4571C5 #5945C5

triadic

#4571C5 #C54571 #71C545

tetradic

#4571C5 #C545B1 #C59945 #45C559

square

#4571C5 #C545B1 #C59945 #45C559

split-complementary

#4571C5 #C55945 #B1C545

monochromatic

#223C6D #31569C #4571C5 #7495D4 #A2B8E2

Accessibility & contrast

On white

4.75

#4571C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#4571C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4571C5

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4571C5	#FFFFFF	#000000	##FFFFFF
##4571C5	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)

#4A79C8

Deuteranopia (green-blind)

#366DC3

Tritanopia (blue-blind)

#008491

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4571c5;
/* rgb */ color: rgb(69, 113, 197);
/* oklch */ color: oklch(55.9% 0.139 262.0);

Tailwind

colors: {
  custom: {
    50: '#8599d7',
    500: '#4571c5',
    950: '#000000',
  },
}

SCSS

$custom: #4571c5;
$custom-light: #8599d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4571c5",
  "rgb": {
    "r": 69,
    "g": 113,
    "b": 197
  },
  "hsl": {
    "h": 219.375,
    "s": 52.459,
    "l": 52.157
  },
  "oklch": {
    "l": 0.55893,
    "c": 0.1394,
    "h": 262
  },
  "luminance": 0.17107
}

Semantic roles & 50–950 ramp

primary

#4571C5

secondary

#CFBC97

accent

#AA4CDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #4571C5

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

Preview Lab → · Contrast checker → · Palette generator →