#4571B7#4571B7

#4571B7 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.0% C 0.120 H 259.3°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#4571B7
RGB	rgb(69, 113, 183)
HSL	hsl(217, 45%, 49%)
HSV	hsv(217, 62%, 72%)
CMYK	cmyk(62.3%, 38.3%, 0%, 28.2%)
CIE-LAB	lab(47.61, 6.98, -41.56)
CIE-LCH	lch(47.61, 42.14, 279.53°)
OKLab	oklab(55.04% -0.0223 -0.118)
OKLCH	oklch(55.04% 0.12 259.3)
XYZ	xyz(16.9036, 16.4928, 47.0832)
Luminance	0.1649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4571B7 #B78B45

analogous

#45AAB7 #4571B7 #5245B7

triadic

#4571B7 #B74571 #71B745

tetradic

#4571B7 #B745AA #B78B45 #45B752

square

#4571B7 #B745AA #B78B45 #45B752

split-complementary

#4571B7 #B75245 #AAB745

monochromatic

#233A5E #34568B #4571B7 #7092C9 #9DB4DA

Accessibility & contrast

On white

4.89

#4571B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#4571B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4571B7

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4571B7	#FFFFFF	#000000	##FFFFFF
##4571B7	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5377BA

Deuteranopia (green-blind)

#436CB6

Tritanopia (blue-blind)

#00818B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4571b7;
/* rgb */ color: rgb(69, 113, 183);
/* oklch */ color: oklch(55.0% 0.120 259.3);

Tailwind

colors: {
  custom: {
    50: '#8399cd',
    500: '#4571b7',
    950: '#000000',
  },
}

SCSS

$custom: #4571b7;
$custom-light: #8399cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4571b7",
  "rgb": {
    "r": 69,
    "g": 113,
    "b": 183
  },
  "hsl": {
    "h": 216.842,
    "s": 45.238,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55038,
    "c": 0.12009,
    "h": 259.3
  },
  "luminance": 0.16494
}

Semantic roles & 50–950 ramp

primary

#4571B7

secondary

#C6B292

accent

#A353D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #4571B7

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

Preview Lab → · Contrast checker → · Palette generator →