#37B1D0#37B1D0

#37B1D0 is a light, moderate cyan. Relative luminance 0.368; OKLCH L 70.7% C 0.113 H 218.8°. Best body text is #000000 at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#37B1D0
RGB	rgb(55, 177, 208)
HSL	hsl(192, 62%, 52%)
HSV	hsv(192, 74%, 82%)
CMYK	cmyk(73.6%, 14.9%, 0%, 18.4%)
CIE-LAB	lab(67.13, -22.97, -25.29)
CIE-LCH	lch(67.13, 34.17, 227.75°)
OKLab	oklab(70.74% -0.0879 -0.0706)
OKLCH	oklch(70.74% 0.113 218.8)
XYZ	xyz(28.6781, 36.8072, 65.2553)
Luminance	0.3681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B1D0 #D05637

analogous

#37D0A3 #37B1D0 #3765D0

triadic

#37B1D0 #D037B1 #B1D037

tetradic

#37B1D0 #A337D0 #D05637 #65D037

square

#37B1D0 #A337D0 #D05637 #65D037

split-complementary

#37B1D0 #D03765 #D0A337

monochromatic

#1B6072 #268AA3 #37B1D0 #69C4DC #9AD8E7

Accessibility & contrast

On white

2.51

#37B1D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.36

#37B1D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B1D0

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B1D0	#FFFFFF	#000000	##000000
##37B1D0	1.00	2.51	8.36	8.36
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.36	21.00	1.00	1.00
##000000	8.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DACD2

Deuteranopia (green-blind)

#899DD0

Tritanopia (blue-blind)

#00BBBB

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #37b1d0;
/* rgb */ color: rgb(55, 177, 208);
/* oklch */ color: oklch(70.7% 0.113 218.8);

Tailwind

colors: {
  custom: {
    50: '#83c8de',
    500: '#37b1d0',
    950: '#000000',
  },
}

SCSS

$custom: #37b1d0;
$custom-light: #83c8de;
$custom-dark: #000000;

JSON

{
  "hex": "#37b1d0",
  "rgb": {
    "r": 55,
    "g": 177,
    "b": 208
  },
  "hsl": {
    "h": 192.157,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.7074,
    "c": 0.11278,
    "h": 218.8
  },
  "luminance": 0.36811
}

Semantic roles & 50–950 ramp

primary

#37B1D0

secondary

#D39D90

accent

#6443E5

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B1D0

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

Preview Lab → · Contrast checker → · Palette generator →