#4570DD#4570DD

#4570DD is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.3% C 0.173 H 265.2°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#4570DD
RGB	rgb(69, 112, 221)
HSL	hsl(223, 69%, 57%)
HSV	hsv(223, 69%, 87%)
CMYK	cmyk(68.8%, 49.3%, 0%, 13.3%)
CIE-LAB	lab(49.58, 20.99, -60.16)
CIE-LCH	lch(49.58, 63.72, 289.24°)
OKLab	oklab(57.28% -0.0146 -0.1727)
OKLCH	oklch(57.28% 0.173 265.2)
XYZ	xyz(21.2950, 18.0719, 70.7585)
Luminance	0.1807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4570DD #DDB245

analogous

#45BCDD #4570DD #6645DD

triadic

#4570DD #DD4570 #70DD45

tetradic

#4570DD #DD45BC #DDB245 #45DD66

square

#4570DD #DD45BC #DDB245 #45DD66

split-complementary

#4570DD #DD6645 #BCDD45

monochromatic

#1A3B8E #2350C1 #4570DD #7998E6 #ACC0F0

Accessibility & contrast

On white

4.55

#4570DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#4570DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4570DD

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4570DD	#FFFFFF	#000000	##000000
##4570DD	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#327DE1

Deuteranopia (green-blind)

#006FDB

Tritanopia (blue-blind)

#008A9C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4570dd;
/* rgb */ color: rgb(69, 112, 221);
/* oklch */ color: oklch(57.3% 0.173 265.2);

Tailwind

colors: {
  custom: {
    50: '#8a98e8',
    500: '#4570dd',
    950: '#000000',
  },
}

SCSS

$custom: #4570dd;
$custom-light: #8a98e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4570dd",
  "rgb": {
    "r": 69,
    "g": 112,
    "b": 221
  },
  "hsl": {
    "h": 223.026,
    "s": 69.091,
    "l": 56.863
  },
  "oklch": {
    "l": 0.57278,
    "c": 0.17328,
    "h": 265.2
  },
  "luminance": 0.18074
}

Semantic roles & 50–950 ramp

primary

#4570DD

secondary

#DECCA0

accent

#BA3CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4570DD

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

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