#37A5B7#37A5B7

#37A5B7 is a light, moderate teal. Relative luminance 0.311; OKLCH L 66.8% C 0.100 H 210.6°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#37A5B7
RGB	rgb(55, 165, 183)
HSL	hsl(188, 54%, 47%)
HSV	hsv(188, 70%, 72%)
CMYK	cmyk(69.9%, 9.8%, 0%, 28.2%)
CIE-LAB	lab(62.62, -24.75, -18.29)
CIE-LCH	lch(62.62, 30.77, 216.46°)
OKLab	oklab(66.81% -0.086 -0.0508)
OKLCH	oklch(66.81% 0.1 210.6)
XYZ	xyz(23.5743, 31.1387, 49.5585)
Luminance	0.3114 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A5B7 #B74937

analogous

#37B789 #37A5B7 #3765B7

triadic

#37A5B7 #B737A5 #A5B737

tetradic

#37A5B7 #8937B7 #B74937 #65B737

square

#37A5B7 #8937B7 #B74937 #65B737

split-complementary

#37A5B7 #B73765 #B78937

monochromatic

#1B5059 #297B88 #37A5B7 #5DBECE #8CD1DC

Accessibility & contrast

On white

2.91

#37A5B7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.23

#37A5B7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A5B7

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A5B7	#FFFFFF	#000000	##000000
##37A5B7	1.00	2.91	7.23	7.23
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.23	21.00	1.00	1.00
##000000	7.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#969FB8

Deuteranopia (green-blind)

#8492B7

Tritanopia (blue-blind)

#00ADAA

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #37a5b7;
/* rgb */ color: rgb(55, 165, 183);
/* oklch */ color: oklch(66.8% 0.100 210.6);

Tailwind

colors: {
  custom: {
    50: '#7fc0cc',
    500: '#37a5b7',
    950: '#000000',
  },
}

SCSS

$custom: #37a5b7;
$custom-light: #7fc0cc;
$custom-dark: #000000;

JSON

{
  "hex": "#37a5b7",
  "rgb": {
    "r": 55,
    "g": 165,
    "b": 183
  },
  "hsl": {
    "h": 188.438,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.66814,
    "c": 0.09988,
    "h": 210.6
  },
  "luminance": 0.31141
}

Semantic roles & 50–950 ramp

primary

#37A5B7

secondary

#C78D83

accent

#5F4BDD

background

#F8FBFC

surface

#F0F7F8

border

#CBD0D1

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #37A5B7

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

Preview Lab → · Contrast checker → · Palette generator →