#37A2BB#37A2BB

#37A2BB is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.2% C 0.101 H 216.6°. Best body text is #000000 at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#37A2BB
RGB	rgb(55, 162, 187)
HSL	hsl(191, 55%, 47%)
HSV	hsv(191, 71%, 73%)
CMYK	cmyk(70.6%, 13.4%, 0%, 26.7%)
CIE-LAB	lab(61.86, -21.95, -21.69)
CIE-LCH	lch(61.86, 30.86, 224.66°)
OKLab	oklab(66.25% -0.0813 -0.0605)
OKLCH	oklch(66.25% 0.101 216.6)
XYZ	xyz(23.4618, 30.2381, 51.6041)
Luminance	0.3024 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A2BB #BB5037

analogous

#37BB92 #37A2BB #3760BB

triadic

#37A2BB #BB37A2 #A2BB37

tetradic

#37A2BB #9237BB #BB5037 #60BB37

square

#37A2BB #9237BB #BB5037 #60BB37

split-complementary

#37A2BB #BB3760 #BB9237

monochromatic

#1B505C #29798C #37A2BB #5FBBD0 #8ECFDE

Accessibility & contrast

On white

2.98

#37A2BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.05

#37A2BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A2BB

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A2BB	#FFFFFF	#000000	##000000
##37A2BB	1.00	2.98	7.05	7.05
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.05	21.00	1.00	1.00
##000000	7.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#919DBC

Deuteranopia (green-blind)

#7F90BB

Tritanopia (blue-blind)

#00ABAA

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #37a2bb;
/* rgb */ color: rgb(55, 162, 187);
/* oklch */ color: oklch(66.2% 0.101 216.6);

Tailwind

colors: {
  custom: {
    50: '#7fbdcf',
    500: '#37a2bb',
    950: '#000000',
  },
}

SCSS

$custom: #37a2bb;
$custom-light: #7fbdcf;
$custom-dark: #000000;

JSON

{
  "hex": "#37a2bb",
  "rgb": {
    "r": 55,
    "g": 162,
    "b": 187
  },
  "hsl": {
    "h": 191.364,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.66245,
    "c": 0.10132,
    "h": 216.6
  },
  "luminance": 0.30241
}

Semantic roles & 50–950 ramp

primary

#37A2BB

secondary

#C99285

accent

#664ADE

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #37A2BB

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

Preview Lab → · Contrast checker → · Palette generator →