#4570CF#4570CF

#4570CF is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.3% C 0.154 H 263.8°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#4570CF
RGB	rgb(69, 112, 207)
HSL	hsl(221, 59%, 54%)
HSV	hsv(221, 67%, 81%)
CMYK	cmyk(66.7%, 45.9%, 0%, 18.8%)
CIE-LAB	lab(48.71, 16.02, -53.62)
CIE-LCH	lch(48.71, 55.96, 286.64°)
OKLab	oklab(56.33% -0.0166 -0.1534)
OKLCH	oklch(56.33% 0.154 263.8)
XYZ	xyz(19.5069, 17.3566, 61.3415)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4570CF #CFA445

analogous

#45B5CF #4570CF #5F45CF

triadic

#4570CF #CF4570 #70CF45

tetradic

#4570CF #CF45B5 #CFA445 #45CF5F

square

#4570CF #CF45B5 #CFA445 #45CF5F

split-complementary

#4570CF #CF5F45 #B5CF45

monochromatic

#203C7A #2C54AB #4570CF #7695DC #A6BBE8

Accessibility & contrast

On white

4.70

#4570CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#4570CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4570CF

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4570CF	#FFFFFF	#000000	##FFFFFF
##4570CF	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407AD3

Deuteranopia (green-blind)

#266ECD

Tritanopia (blue-blind)

#008695

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4570cf;
/* rgb */ color: rgb(69, 112, 207);
/* oklch */ color: oklch(56.3% 0.154 263.8);

Tailwind

colors: {
  custom: {
    50: '#8798de',
    500: '#4570cf',
    950: '#000000',
  },
}

SCSS

$custom: #4570cf;
$custom-light: #8798de;
$custom-dark: #000000;

JSON

{
  "hex": "#4570cf",
  "rgb": {
    "r": 69,
    "g": 112,
    "b": 207
  },
  "hsl": {
    "h": 221.304,
    "s": 58.974,
    "l": 54.118
  },
  "oklch": {
    "l": 0.56326,
    "c": 0.15431,
    "h": 263.8
  },
  "luminance": 0.17359
}

Semantic roles & 50–950 ramp

primary

#4570CF

secondary

#D5C39B

accent

#B146E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4570CF

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

Preview Lab → · Contrast checker → · Palette generator →