#37AAC9#37AAC9

#37AAC9 is a light, moderate cyan. Relative luminance 0.338; OKLCH L 68.8% C 0.109 H 219.8°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#37AAC9
RGB	rgb(55, 170, 201)
HSL	hsl(193, 57%, 50%)
HSV	hsv(193, 73%, 79%)
CMYK	cmyk(72.6%, 15.4%, 0%, 21.2%)
CIE-LAB	lab(64.78, -21.61, -25.02)
CIE-LCH	lch(64.78, 33.06, 229.18°)
OKLab	oklab(68.77% -0.0838 -0.0699)
OKLCH	oklch(68.77% 0.109 219.8)
XYZ	xyz(26.4885, 33.7756, 60.3703)
Luminance	0.3378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37AAC9 #C95637

analogous

#37C99F #37AAC9 #3761C9

triadic

#37AAC9 #C937AA #AAC937

tetradic

#37AAC9 #9F37C9 #C95637 #61C937

square

#37AAC9 #9F37C9 #C95637 #61C937

split-complementary

#37AAC9 #C93761 #C99F37

monochromatic

#1C5969 #298299 #37AAC9 #67BED6 #97D3E3

Accessibility & contrast

On white

2.71

#37AAC9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#37AAC9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AAC9

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37AAC9	#FFFFFF	#000000	##000000
##37AAC9	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A5CB

Deuteranopia (green-blind)

#8397C9

Tritanopia (blue-blind)

#00B4B4

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #37aac9;
/* rgb */ color: rgb(55, 170, 201);
/* oklch */ color: oklch(68.8% 0.109 219.8);

Tailwind

colors: {
  custom: {
    50: '#82c3d9',
    500: '#37aac9',
    950: '#000000',
  },
}

SCSS

$custom: #37aac9;
$custom-light: #82c3d9;
$custom-dark: #000000;

JSON

{
  "hex": "#37aac9",
  "rgb": {
    "r": 55,
    "g": 170,
    "b": 201
  },
  "hsl": {
    "h": 192.74,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.68768,
    "c": 0.10911,
    "h": 219.8
  },
  "luminance": 0.33779
}

Semantic roles & 50–950 ramp

primary

#37AAC9

secondary

#CF9B8D

accent

#6847E1

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37AAC9

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

Preview Lab → · Contrast checker → · Palette generator →