#2571B0#2571B0

#2571B0 is a mid, vivid cyan. Relative luminance 0.153; OKLCH L 53.4% C 0.123 H 247.9°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#2571B0
RGB	rgb(37, 113, 176)
HSL	hsl(207, 65%, 42%)
HSV	hsv(207, 79%, 69%)
CMYK	cmyk(79%, 35.8%, 0%, 31%)
CIE-LAB	lab(46.09, -0.46, -39.98)
CIE-LCH	lch(46.09, 39.98, 269.34°)
OKLab	oklab(53.41% -0.0461 -0.1138)
OKLCH	oklch(53.41% 0.123 247.9)
XYZ	xyz(14.5015, 15.3364, 43.2618)
Luminance	0.1534 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2571B0 #B06425

analogous

#25B0AA #2571B0 #252CB0

triadic

#2571B0 #B02571 #71B025

tetradic

#2571B0 #AA25B0 #B06425 #2CB025

square

#2571B0 #AA25B0 #B06425 #2CB025

split-complementary

#2571B0 #B0252C #B0AA25

monochromatic

#10304B #1A517D #2571B0 #3C90D6 #6FADE1

Accessibility & contrast

On white

5.16

#2571B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#2571B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2571B0

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2571B0	#FFFFFF	#000000	##FFFFFF
##2571B0	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5474B3

Deuteranopia (green-blind)

#3F67AF

Tritanopia (blue-blind)

#008088

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #2571b0;
/* rgb */ color: rgb(37, 113, 176);
/* oklch */ color: oklch(53.4% 0.123 247.9);

Tailwind

colors: {
  custom: {
    50: '#7599c8',
    500: '#2571b0',
    950: '#000000',
  },
}

SCSS

$custom: #2571b0;
$custom-light: #7599c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2571b0",
  "rgb": {
    "r": 37,
    "g": 113,
    "b": 176
  },
  "hsl": {
    "h": 207.194,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.53406,
    "c": 0.12281,
    "h": 247.9
  },
  "luminance": 0.15338
}

Semantic roles & 50–950 ramp

primary

#2571B0

secondary

#C7946A

accent

#8C40E8

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #2571B0

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

Preview Lab → · Contrast checker → · Palette generator →