#37AAD3#37AAD3

#37AAD3 is a light, moderate cyan. Relative luminance 0.343; OKLCH L 69.2% C 0.116 H 226.4°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#37AAD3
RGB	rgb(55, 170, 211)
HSL	hsl(196, 64%, 52%)
HSV	hsv(196, 74%, 83%)
CMYK	cmyk(73.9%, 19.4%, 0%, 17.3%)
CIE-LAB	lab(65.17, -18.36, -29.97)
CIE-LCH	lch(65.17, 35.14, 238.51°)
OKLab	oklab(69.2% -0.08 -0.084)
OKLCH	oklch(69.2% 0.116 226.4)
XYZ	xyz(27.7033, 34.2616, 66.7685)
Luminance	0.3427 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37AAD3 #D36037

analogous

#37D3AE #37AAD3 #375CD3

triadic

#37AAD3 #D337AA #AAD337

tetradic

#37AAD3 #AE37D3 #D36037 #5CD337

square

#37AAD3 #AE37D3 #D36037 #5CD337

split-complementary

#37AAD3 #D3375C #D3AE37

monochromatic

#1A5E76 #2585A8 #37AAD3 #69BFDE #9BD5E9

Accessibility & contrast

On white

2.67

#37AAD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.85

#37AAD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AAD3

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37AAD3	#FFFFFF	#000000	##000000
##37AAD3	1.00	2.67	7.85	7.85
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.85	21.00	1.00	1.00
##000000	7.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A7D5

Deuteranopia (green-blind)

#7F98D3

Tritanopia (blue-blind)

#00B6B7

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #37aad3;
/* rgb */ color: rgb(55, 170, 211);
/* oklch */ color: oklch(69.2% 0.116 226.4);

Tailwind

colors: {
  custom: {
    50: '#83c3e0',
    500: '#37aad3',
    950: '#000000',
  },
}

SCSS

$custom: #37aad3;
$custom-light: #83c3e0;
$custom-dark: #000000;

JSON

{
  "hex": "#37aad3",
  "rgb": {
    "r": 55,
    "g": 170,
    "b": 211
  },
  "hsl": {
    "h": 195.769,
    "s": 63.934,
    "l": 52.157
  },
  "oklch": {
    "l": 0.69204,
    "c": 0.11603,
    "h": 226.4
  },
  "luminance": 0.34265
}

Semantic roles & 50–950 ramp

primary

#37AAD3

secondary

#D5A391

accent

#6D41E7

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37AAD3

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

Preview Lab → · Contrast checker → · Palette generator →