#37AFD3#37AFD3

#37AFD3 is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.4% C 0.115 H 222.4°. Best body text is #000000 at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#37AFD3
RGB	rgb(55, 175, 211)
HSL	hsl(194, 64%, 52%)
HSV	hsv(194, 74%, 83%)
CMYK	cmyk(73.9%, 17.1%, 0%, 17.3%)
CIE-LAB	lab(66.65, -20.97, -27.68)
CIE-LCH	lch(66.65, 34.73, 232.85°)
OKLab	oklab(70.39% -0.0848 -0.0775)
OKLCH	oklch(70.39% 0.115 222.4)
XYZ	xyz(28.6585, 36.1719, 67.0869)
Luminance	0.3618 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37AFD3 #D35B37

analogous

#37D3A9 #37AFD3 #3761D3

triadic

#37AFD3 #D337AF #AFD337

tetradic

#37AFD3 #A937D3 #D35B37 #61D337

square

#37AFD3 #A937D3 #D35B37 #61D337

split-complementary

#37AFD3 #D33761 #D3A937

monochromatic

#1A6176 #258AA8 #37AFD3 #69C3DE #9BD7E9

Accessibility & contrast

On white

2.55

#37AFD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.24

#37AFD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AFD3

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37AFD3	#FFFFFF	#000000	##000000
##37AFD3	1.00	2.55	8.24	8.24
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.24	21.00	1.00	1.00
##000000	8.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AABD5

Deuteranopia (green-blind)

#859BD3

Tritanopia (blue-blind)

#00BABB

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #37afd3;
/* rgb */ color: rgb(55, 175, 211);
/* oklch */ color: oklch(70.4% 0.115 222.4);

Tailwind

colors: {
  custom: {
    50: '#84c7e0',
    500: '#37afd3',
    950: '#000000',
  },
}

SCSS

$custom: #37afd3;
$custom-light: #84c7e0;
$custom-dark: #000000;

JSON

{
  "hex": "#37afd3",
  "rgb": {
    "r": 55,
    "g": 175,
    "b": 211
  },
  "hsl": {
    "h": 193.846,
    "s": 63.934,
    "l": 52.157
  },
  "oklch": {
    "l": 0.70392,
    "c": 0.11488,
    "h": 222.4
  },
  "luminance": 0.36175
}

Semantic roles & 50–950 ramp

primary

#37AFD3

secondary

#D5A191

accent

#6741E7

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37AFD3

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

Preview Lab → · Contrast checker → · Palette generator →