#37AAD9#37AAD9

#37AAD9 is a light, vivid cyan. Relative luminance 0.346; OKLCH L 69.5% C 0.121 H 229.9°. Best body text is #000000 at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#37AAD9
RGB	rgb(55, 170, 217)
HSL	hsl(197, 68%, 53%)
HSV	hsv(197, 75%, 85%)
CMYK	cmyk(74.7%, 21.7%, 0%, 14.9%)
CIE-LAB	lab(65.41, -16.37, -32.91)
CIE-LCH	lch(65.41, 36.75, 243.56°)
OKLab	oklab(69.48% -0.0778 -0.0925)
OKLCH	oklch(69.48% 0.121 229.9)
XYZ	xyz(28.4696, 34.5681, 70.8040)
Luminance	0.3457 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37AAD9 #D96637

analogous

#37D9B7 #37AAD9 #3759D9

triadic

#37AAD9 #D937AA #AAD937

tetradic

#37AAD9 #B737D9 #D96637 #59D937

square

#37AAD9 #B737D9 #D96637 #59D937

split-complementary

#37AAD9 #D93759 #D9B737

monochromatic

#18607E #2288B1 #37AAD9 #6AC0E3 #9ED6ED

Accessibility & contrast

On white

2.65

#37AAD9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.91

#37AAD9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AAD9

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37AAD9	#FFFFFF	#000000	##000000
##37AAD9	1.00	2.65	7.91	7.91
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.91	21.00	1.00	1.00
##000000	7.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92A8DB

Deuteranopia (green-blind)

#7C98D8

Tritanopia (blue-blind)

#00B7BA

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #37aad9;
/* rgb */ color: rgb(55, 170, 217);
/* oklch */ color: oklch(69.5% 0.121 229.9);

Tailwind

colors: {
  custom: {
    50: '#84c3e5',
    500: '#37aad9',
    950: '#000000',
  },
}

SCSS

$custom: #37aad9;
$custom-light: #84c3e5;
$custom-dark: #000000;

JSON

{
  "hex": "#37aad9",
  "rgb": {
    "r": 55,
    "g": 170,
    "b": 217
  },
  "hsl": {
    "h": 197.407,
    "s": 68.067,
    "l": 53.333
  },
  "oklch": {
    "l": 0.69477,
    "c": 0.12088,
    "h": 229.9
  },
  "luminance": 0.34571
}

Semantic roles & 50–950 ramp

primary

#37AAD9

secondary

#D9A793

accent

#6F3DEB

background

#F8FBFE

surface

#F0F7FC

border

#CBD0D5

text

#0C1215

muted

#7D8184

Preview Lab

Preview with #37AAD9

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

Preview Lab → · Contrast checker → · Palette generator →