#4570E4#4570E4

#4570E4 is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.8% C 0.183 H 265.6°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4570E4
RGB	rgb(69, 112, 228)
HSL	hsl(224, 75%, 58%)
HSV	hsv(224, 70%, 89%)
CMYK	cmyk(69.7%, 50.9%, 0%, 10.6%)
CIE-LAB	lab(50.04, 23.48, -63.37)
CIE-LCH	lch(50.04, 67.58, 290.33°)
OKLab	oklab(57.77% -0.0139 -0.1821)
OKLCH	oklch(57.77% 0.183 265.6)
XYZ	xyz(22.2471, 18.4527, 75.7730)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4570E4 #E4B945

analogous

#45BFE4 #4570E4 #6945E4

triadic

#4570E4 #E44570 #70E445

tetradic

#4570E4 #E445BF #E4B945 #45E469

square

#4570E4 #E445BF #E4B945 #45E469

split-complementary

#4570E4 #E46945 #BFE445

monochromatic

#163998 #1E4DCE #4570E4 #7A99EC #B0C2F4

Accessibility & contrast

On white

4.48

#4570E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#4570E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4570E4

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4570E4	#FFFFFF	#000000	##000000
##4570E4	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#277FE8

Deuteranopia (green-blind)

#0070E2

Tritanopia (blue-blind)

#008C9F

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4570e4;
/* rgb */ color: rgb(69, 112, 228);
/* oklch */ color: oklch(57.8% 0.183 265.6);

Tailwind

colors: {
  custom: {
    50: '#8b98ed',
    500: '#4570e4',
    950: '#000000',
  },
}

SCSS

$custom: #4570e4;
$custom-light: #8b98ed;
$custom-dark: #000000;

JSON

{
  "hex": "#4570e4",
  "rgb": {
    "r": 69,
    "g": 112,
    "b": 228
  },
  "hsl": {
    "h": 223.774,
    "s": 74.648,
    "l": 58.235
  },
  "oklch": {
    "l": 0.57772,
    "c": 0.18264,
    "h": 265.6
  },
  "luminance": 0.18455
}

Semantic roles & 50–950 ramp

primary

#4570E4

secondary

#E2D1A3

accent

#BF37F1

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4570E4

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

Preview Lab → · Contrast checker → · Palette generator →