#37A1B7#37A1B7

#37A1B7 is a light, moderate cyan. Relative luminance 0.297; OKLCH L 65.8% C 0.099 H 214.4°. Best body text is #000000 at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#37A1B7
RGB	rgb(55, 161, 183)
HSL	hsl(190, 54%, 47%)
HSV	hsv(190, 70%, 72%)
CMYK	cmyk(69.9%, 12%, 0%, 28.2%)
CIE-LAB	lab(61.41, -22.70, -20.13)
CIE-LCH	lch(61.41, 30.34, 221.57°)
OKLab	oklab(65.84% -0.0819 -0.0561)
OKLCH	oklch(65.84% 0.099 214.4)
XYZ	xyz(22.8641, 29.7183, 49.3218)
Luminance	0.2972 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A1B7 #B74D37

analogous

#37B78D #37A1B7 #3761B7

triadic

#37A1B7 #B737A1 #A1B737

tetradic

#37A1B7 #8D37B7 #B74D37 #61B737

square

#37A1B7 #8D37B7 #B74D37 #61B737

split-complementary

#37A1B7 #B73761 #B78D37

monochromatic

#1B4E59 #297888 #37A1B7 #5DBBCE #8CCFDC

Accessibility & contrast

On white

3.02

#37A1B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.94

#37A1B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #37A1B7

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A1B7	#FFFFFF	#000000	##000000
##37A1B7	1.00	3.02	6.94	6.94
#FFFFFF	3.02	1.00	21.00	21.00
#000000	6.94	21.00	1.00	1.00
##000000	6.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#919CB8

Deuteranopia (green-blind)

#7F8FB7

Tritanopia (blue-blind)

#00A9A8

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #37a1b7;
/* rgb */ color: rgb(55, 161, 183);
/* oklch */ color: oklch(65.8% 0.099 214.4);

Tailwind

colors: {
  custom: {
    50: '#7fbdcc',
    500: '#37a1b7',
    950: '#000000',
  },
}

SCSS

$custom: #37a1b7;
$custom-light: #7fbdcc;
$custom-dark: #000000;

JSON

{
  "hex": "#37a1b7",
  "rgb": {
    "r": 55,
    "g": 161,
    "b": 183
  },
  "hsl": {
    "h": 190.313,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.65836,
    "c": 0.09924,
    "h": 214.4
  },
  "luminance": 0.29721
}

Semantic roles & 50–950 ramp

primary

#37A1B7

secondary

#C78F83

accent

#644BDD

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #37A1B7

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

Preview Lab → · Contrast checker → · Palette generator →