#4570D9#4570D9

#4570D9 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.0% C 0.168 H 264.8°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4570D9
RGB	rgb(69, 112, 217)
HSL	hsl(223, 66%, 56%)
HSV	hsv(223, 68%, 85%)
CMYK	cmyk(68.2%, 48.4%, 0%, 14.9%)
CIE-LAB	lab(49.33, 19.57, -58.31)
CIE-LCH	lch(49.33, 61.51, 288.56°)
OKLab	oklab(57% -0.0151 -0.1672)
OKLCH	oklch(57% 0.168 264.8)
XYZ	xyz(20.7684, 17.8612, 67.9852)
Luminance	0.1786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4570D9 #D9AE45

analogous

#45BAD9 #4570D9 #6445D9

triadic

#4570D9 #D94570 #70D945

tetradic

#4570D9 #D945BA #D9AE45 #45D964

square

#4570D9 #D945BA #D9AE45 #45D964

split-complementary

#4570D9 #D96445 #BAD945

monochromatic

#1C3B88 #2651BB #4570D9 #7897E3 #ABBEEE

Accessibility & contrast

On white

4.59

#4570D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4570D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4570D9

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4570D9	#FFFFFF	#000000	##FFFFFF
##4570D9	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#367CDD

Deuteranopia (green-blind)

#0A6FD7

Tritanopia (blue-blind)

#00899A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4570d9;
/* rgb */ color: rgb(69, 112, 217);
/* oklch */ color: oklch(57.0% 0.168 264.8);

Tailwind

colors: {
  custom: {
    50: '#8998e5',
    500: '#4570d9',
    950: '#000000',
  },
}

SCSS

$custom: #4570d9;
$custom-light: #8998e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4570d9",
  "rgb": {
    "r": 69,
    "g": 112,
    "b": 217
  },
  "hsl": {
    "h": 222.568,
    "s": 66.071,
    "l": 56.078
  },
  "oklch": {
    "l": 0.57001,
    "c": 0.16789,
    "h": 264.8
  },
  "luminance": 0.17863
}

Semantic roles & 50–950 ramp

primary

#4570D9

secondary

#DBCA9E

accent

#B83FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4570D9

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

Preview Lab → · Contrast checker → · Palette generator →