#2371BC#2371BC

#2371BC is a mid, vivid cyan. Relative luminance 0.158; OKLCH L 54.1% C 0.139 H 251.5°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#2371BC
RGB	rgb(35, 113, 188)
HSL	hsl(209, 69%, 44%)
HSV	hsv(209, 81%, 74%)
CMYK	cmyk(81.4%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(46.71, 3.89, -45.97)
CIE-LCH	lch(46.71, 46.13, 274.84°)
OKLab	oklab(54.09% -0.044 -0.1314)
OKLCH	oklch(54.09% 0.139 251.5)
XYZ	xyz(15.6719, 15.7965, 49.7902)
Luminance	0.1580 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2371BC #BC6E23

analogous

#23BCBA #2371BC #2324BC

triadic

#2371BC #BC2371 #71BC23

tetradic

#2371BC #BA23BC #BC6E23 #24BC23

square

#2371BC #BA23BC #BC6E23 #24BC23

split-complementary

#2371BC #BC2324 #BCBA23

monochromatic

#103355 #195288 #2371BC #4190DC #74AEE5

Accessibility & contrast

On white

5.05

#2371BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#2371BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2371BC

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2371BC	#FFFFFF	#000000	##FFFFFF
##2371BC	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D76BF

Deuteranopia (green-blind)

#3368BB

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #2371bc;
/* rgb */ color: rgb(35, 113, 188);
/* oklch */ color: oklch(54.1% 0.139 251.5);

Tailwind

colors: {
  custom: {
    50: '#7799d0',
    500: '#2371bc',
    950: '#000000',
  },
}

SCSS

$custom: #2371bc;
$custom-light: #7799d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2371bc",
  "rgb": {
    "r": 35,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 209.412,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.5409,
    "c": 0.13856,
    "h": 251.5
  },
  "luminance": 0.15798
}

Semantic roles & 50–950 ramp

primary

#2371BC

secondary

#CC9C6F

accent

#923CEB

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0D14

muted

#7C7E82

Preview Lab

Preview with #2371BC

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

Preview Lab → · Contrast checker → · Palette generator →