#37A4BA#37A4BA

#37A4BA is a light, moderate cyan. Relative luminance 0.309; OKLCH L 66.7% C 0.101 H 214.0°. Best body text is #000000 at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#37A4BA
RGB	rgb(55, 164, 186)
HSL	hsl(190, 54%, 47%)
HSV	hsv(190, 70%, 73%)
CMYK	cmyk(70.4%, 11.8%, 0%, 27.1%)
CIE-LAB	lab(62.43, -23.30, -20.26)
CIE-LCH	lch(62.43, 30.88, 221.02°)
OKLab	oklab(66.69% -0.0837 -0.0564)
OKLCH	oklch(66.69% 0.101 214)
XYZ	xyz(23.7102, 30.9056, 51.1606)
Luminance	0.3091 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A4BA #BA4D37

analogous

#37BA8E #37A4BA #3763BA

triadic

#37A4BA #BA37A4 #A4BA37

tetradic

#37A4BA #8E37BA #BA4D37 #63BA37

square

#37A4BA #8E37BA #BA4D37 #63BA37

split-complementary

#37A4BA #BA3763 #BA8E37

monochromatic

#1B515C #297A8B #37A4BA #5FBDD0 #8ED0DE

Accessibility & contrast

On white

2.92

#37A4BA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.18

#37A4BA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A4BA

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A4BA	#FFFFFF	#000000	##000000
##37A4BA	1.00	2.92	7.18	7.18
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.18	21.00	1.00	1.00
##000000	7.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#949FBB

Deuteranopia (green-blind)

#8291BA

Tritanopia (blue-blind)

#00ACAB

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #37a4ba;
/* rgb */ color: rgb(55, 164, 186);
/* oklch */ color: oklch(66.7% 0.101 214.0);

Tailwind

colors: {
  custom: {
    50: '#80bfce',
    500: '#37a4ba',
    950: '#000000',
  },
}

SCSS

$custom: #37a4ba;
$custom-light: #80bfce;
$custom-dark: #000000;

JSON

{
  "hex": "#37a4ba",
  "rgb": {
    "r": 55,
    "g": 164,
    "b": 186
  },
  "hsl": {
    "h": 190.076,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.66691,
    "c": 0.10097,
    "h": 214
  },
  "luminance": 0.30908
}

Semantic roles & 50–950 ramp

primary

#37A4BA

secondary

#C89085

accent

#634ADE

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #37A4BA

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

Preview Lab → · Contrast checker → · Palette generator →