#3571B1#3571B1

#3571B1 is a mid, moderate cyan. Relative luminance 0.157; OKLCH L 54.0% C 0.118 H 252.2°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#3571B1
RGB	rgb(53, 113, 177)
HSL	hsl(211, 54%, 45%)
HSV	hsv(211, 70%, 69%)
CMYK	cmyk(70.1%, 36.2%, 0%, 30.6%)
CIE-LAB	lab(46.63, 2.07, -39.67)
CIE-LCH	lch(46.63, 39.73, 272.98°)
OKLab	oklab(53.99% -0.0363 -0.1127)
OKLCH	oklch(53.99% 0.118 252.2)
XYZ	xyz(15.3062, 15.7398, 43.8179)
Luminance	0.1574 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3571B1 #B17535

analogous

#35AFB1 #3571B1 #3735B1

triadic

#3571B1 #B13571 #71B135

tetradic

#3571B1 #B135AF #B17535 #35B137

square

#3571B1 #B135AF #B17535 #35B137

split-complementary

#3571B1 #B13735 #AFB135

monochromatic

#193553 #275382 #3571B1 #5790CD #86AFDB

Accessibility & contrast

On white

5.06

#3571B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#3571B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3571B1

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3571B1	#FFFFFF	#000000	##FFFFFF
##3571B1	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5475B4

Deuteranopia (green-blind)

#4269B0

Tritanopia (blue-blind)

#008088

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3571b1;
/* rgb */ color: rgb(53, 113, 177);
/* oklch */ color: oklch(54.0% 0.118 252.2);

Tailwind

colors: {
  custom: {
    50: '#7b99c8',
    500: '#3571b1',
    950: '#000000',
  },
}

SCSS

$custom: #3571b1;
$custom-light: #7b99c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3571b1",
  "rgb": {
    "r": 53,
    "g": 113,
    "b": 177
  },
  "hsl": {
    "h": 210.968,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.53985,
    "c": 0.11843,
    "h": 252.2
  },
  "luminance": 0.15741
}

Semantic roles & 50–950 ramp

primary

#3571B1

secondary

#C4A27D

accent

#964BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3571B1

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

Preview Lab → · Contrast checker → · Palette generator →