#4571DF#4571DF

#4571DF is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.6% C 0.175 H 265.0°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4571DF
RGB	rgb(69, 113, 223)
HSL	hsl(223, 71%, 57%)
HSV	hsv(223, 69%, 87%)
CMYK	cmyk(69.1%, 49.3%, 0%, 12.5%)
CIE-LAB	lab(49.98, 21.08, -60.65)
CIE-LCH	lch(49.98, 64.21, 289.16°)
OKLab	oklab(57.62% -0.0153 -0.1741)
OKLCH	oklch(57.62% 0.175 265)
XYZ	xyz(21.6740, 18.4010, 72.2072)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4571DF #DFB345

analogous

#45BEDF #4571DF #6645DF

triadic

#4571DF #DF4571 #71DF45

tetradic

#4571DF #DF45BE #DFB345 #45DF66

square

#4571DF #DF45BE #DFB345 #45DF66

split-complementary

#4571DF #DF6645 #BEDF45

monochromatic

#193B91 #2250C5 #4571DF #7999E8 #ADC1F1

Accessibility & contrast

On white

4.49

#4571DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#4571DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4571DF

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4571DF	#FFFFFF	#000000	##000000
##4571DF	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#327EE3

Deuteranopia (green-blind)

#0070DD

Tritanopia (blue-blind)

#008B9D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4571df;
/* rgb */ color: rgb(69, 113, 223);
/* oklch */ color: oklch(57.6% 0.175 265.0);

Tailwind

colors: {
  custom: {
    50: '#8a99ea',
    500: '#4571df',
    950: '#000000',
  },
}

SCSS

$custom: #4571df;
$custom-light: #8a99ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4571df",
  "rgb": {
    "r": 69,
    "g": 113,
    "b": 223
  },
  "hsl": {
    "h": 222.857,
    "s": 70.642,
    "l": 57.255
  },
  "oklch": {
    "l": 0.5762,
    "c": 0.17477,
    "h": 265
  },
  "luminance": 0.18403
}

Semantic roles & 50–950 ramp

primary

#4571DF

secondary

#DFCDA1

accent

#BA3AED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4571DF

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

Preview Lab → · Contrast checker → · Palette generator →