#4570CC#4570CC

#4570CC is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.1% C 0.150 H 263.5°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4570CC
RGB	rgb(69, 112, 204)
HSL	hsl(221, 57%, 54%)
HSV	hsv(221, 66%, 80%)
CMYK	cmyk(66.2%, 45.1%, 0%, 20%)
CIE-LAB	lab(48.53, 14.96, -52.20)
CIE-LCH	lch(48.53, 54.30, 286.00°)
OKLab	oklab(56.13% -0.0171 -0.1492)
OKLCH	oklch(56.13% 0.15 263.5)
XYZ	xyz(19.1437, 17.2113, 59.4283)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4570CC #CCA145

analogous

#45B3CC #4570CC #5D45CC

triadic

#4570CC #CC4570 #70CC45

tetradic

#4570CC #CC45B3 #CCA145 #45CC5D

square

#4570CC #CC45B3 #CCA145 #45CC5D

split-complementary

#4570CC #CC5D45 #B3CC45

monochromatic

#203C76 #2E54A6 #4570CC #7595D9 #A5BAE6

Accessibility & contrast

On white

4.73

#4570CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#4570CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4570CC

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4570CC	#FFFFFF	#000000	##FFFFFF
##4570CC	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#437ACF

Deuteranopia (green-blind)

#2B6DCA

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4570cc;
/* rgb */ color: rgb(69, 112, 204);
/* oklch */ color: oklch(56.1% 0.150 263.5);

Tailwind

colors: {
  custom: {
    50: '#8698dc',
    500: '#4570cc',
    950: '#000000',
  },
}

SCSS

$custom: #4570cc;
$custom-light: #8698dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4570cc",
  "rgb": {
    "r": 69,
    "g": 112,
    "b": 204
  },
  "hsl": {
    "h": 220.889,
    "s": 56.962,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56128,
    "c": 0.1502,
    "h": 263.5
  },
  "luminance": 0.17213
}

Semantic roles & 50–950 ramp

primary

#4570CC

secondary

#D3C199

accent

#B048E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4570CC

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

Preview Lab → · Contrast checker → · Palette generator →