#4571D9#4571D9

#4571D9 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.2% C 0.167 H 264.5°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4571D9
RGB	rgb(69, 113, 217)
HSL	hsl(222, 66%, 56%)
HSV	hsv(222, 68%, 85%)
CMYK	cmyk(68.2%, 47.9%, 0%, 14.9%)
CIE-LAB	lab(49.60, 18.95, -57.87)
CIE-LCH	lch(49.60, 60.90, 288.13°)
OKLab	oklab(57.21% -0.016 -0.1659)
OKLCH	oklch(57.21% 0.167 264.5)
XYZ	xyz(20.8794, 18.0831, 68.0222)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4571D9 #D9AD45

analogous

#45BBD9 #4571D9 #6345D9

triadic

#4571D9 #D94571 #71D945

tetradic

#4571D9 #D945BB #D9AD45 #45D963

square

#4571D9 #D945BB #D9AD45 #45D963

split-complementary

#4571D9 #D96345 #BBD945

monochromatic

#1C3C88 #2652BB #4571D9 #7898E3 #ABBFEE

Accessibility & contrast

On white

4.55

#4571D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#4571D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4571D9

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4571D9	#FFFFFF	#000000	##000000
##4571D9	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#397DDD

Deuteranopia (green-blind)

#1170D7

Tritanopia (blue-blind)

#00899A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4571d9;
/* rgb */ color: rgb(69, 113, 217);
/* oklch */ color: oklch(57.2% 0.167 264.5);

Tailwind

colors: {
  custom: {
    50: '#8999e5',
    500: '#4571d9',
    950: '#000000',
  },
}

SCSS

$custom: #4571d9;
$custom-light: #8999e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4571d9",
  "rgb": {
    "r": 69,
    "g": 113,
    "b": 217
  },
  "hsl": {
    "h": 222.162,
    "s": 66.071,
    "l": 56.078
  },
  "oklch": {
    "l": 0.57206,
    "c": 0.16669,
    "h": 264.5
  },
  "luminance": 0.18085
}

Semantic roles & 50–950 ramp

primary

#4571D9

secondary

#DBC99E

accent

#B63FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4571D9

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

Preview Lab → · Contrast checker → · Palette generator →