#4571CC#4571CC

#4571CC is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.3% C 0.149 H 263.1°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4571CC
RGB	rgb(69, 113, 204)
HSL	hsl(220, 57%, 54%)
HSV	hsv(220, 66%, 80%)
CMYK	cmyk(66.2%, 44.6%, 0%, 20%)
CIE-LAB	lab(48.80, 14.34, -51.75)
CIE-LCH	lch(48.80, 53.70, 285.48°)
OKLab	oklab(56.34% -0.018 -0.1479)
OKLCH	oklch(56.34% 0.149 263.1)
XYZ	xyz(19.2546, 17.4332, 59.4653)
Luminance	0.1744 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4571CC #CCA045

analogous

#45B5CC #4571CC #5C45CC

triadic

#4571CC #CC4571 #71CC45

tetradic

#4571CC #CC45B5 #CCA045 #45CC5C

square

#4571CC #CC45B5 #CCA045 #45CC5C

split-complementary

#4571CC #CC5C45 #B5CC45

monochromatic

#203C76 #2E55A6 #4571CC #7596D9 #A5BAE6

Accessibility & contrast

On white

4.68

#4571CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#4571CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4571CC

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4571CC	#FFFFFF	#000000	##FFFFFF
##4571CC	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#457BCF

Deuteranopia (green-blind)

#2D6ECA

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4571cc;
/* rgb */ color: rgb(69, 113, 204);
/* oklch */ color: oklch(56.3% 0.149 263.1);

Tailwind

colors: {
  custom: {
    50: '#8699dc',
    500: '#4571cc',
    950: '#000000',
  },
}

SCSS

$custom: #4571cc;
$custom-light: #8699dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4571cc",
  "rgb": {
    "r": 69,
    "g": 113,
    "b": 204
  },
  "hsl": {
    "h": 220.444,
    "s": 56.962,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56341,
    "c": 0.14901,
    "h": 263.1
  },
  "luminance": 0.17435
}

Semantic roles & 50–950 ramp

primary

#4571CC

secondary

#D3C099

accent

#AE48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4571CC

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

Preview Lab → · Contrast checker → · Palette generator →