#4571CB#4571CB

#4571CB is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.3% C 0.148 H 262.9°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4571CB
RGB	rgb(69, 113, 203)
HSL	hsl(220, 56%, 53%)
HSV	hsv(220, 66%, 80%)
CMYK	cmyk(66%, 44.3%, 0%, 20.4%)
CIE-LAB	lab(48.74, 13.98, -51.28)
CIE-LCH	lch(48.74, 53.15, 285.25°)
OKLab	oklab(56.28% -0.0182 -0.1465)
OKLCH	oklch(56.28% 0.148 262.9)
XYZ	xyz(19.1351, 17.3854, 58.8356)
Luminance	0.1739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4571CB #CB9F45

analogous

#45B4CB #4571CB #5C45CB

triadic

#4571CB #CB4571 #71CB45

tetradic

#4571CB #CB45B4 #CB9F45 #45CB5C

square

#4571CB #CB45B4 #CB9F45 #45CB5C

split-complementary

#4571CB #CB5C45 #B4CB45

monochromatic

#213C75 #2E55A5 #4571CB #7596D8 #A5BAE6

Accessibility & contrast

On white

4.69

#4571CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#4571CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4571CB

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4571CB	#FFFFFF	#000000	##FFFFFF
##4571CB	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467ACE

Deuteranopia (green-blind)

#2E6EC9

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4571cb;
/* rgb */ color: rgb(69, 113, 203);
/* oklch */ color: oklch(56.3% 0.148 262.9);

Tailwind

colors: {
  custom: {
    50: '#8699db',
    500: '#4571cb',
    950: '#000000',
  },
}

SCSS

$custom: #4571cb;
$custom-light: #8699db;
$custom-dark: #000000;

JSON

{
  "hex": "#4571cb",
  "rgb": {
    "r": 69,
    "g": 113,
    "b": 203
  },
  "hsl": {
    "h": 220.299,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.56276,
    "c": 0.14764,
    "h": 262.9
  },
  "luminance": 0.17387
}

Semantic roles & 50–950 ramp

primary

#4571CB

secondary

#D3C099

accent

#AE48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4571CB

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

Preview Lab → · Contrast checker → · Palette generator →