#37A5CD#37A5CD

#37A5CD is a light, moderate cyan. Relative luminance 0.321; OKLCH L 67.7% C 0.113 H 226.7°. Best body text is #000000 at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#37A5CD
RGB	rgb(55, 165, 205)
HSL	hsl(196, 60%, 51%)
HSV	hsv(196, 73%, 80%)
CMYK	cmyk(73.2%, 19.5%, 0%, 19.6%)
CIE-LAB	lab(63.45, -17.68, -29.30)
CIE-LCH	lch(63.45, 34.22, 238.89°)
OKLab	oklab(67.75% -0.0774 -0.0821)
OKLCH	oklch(67.75% 0.113 226.7)
XYZ	xyz(26.0456, 32.1272, 62.5743)
Luminance	0.3213 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A5CD #CD5F37

analogous

#37CDAA #37A5CD #375ACD

triadic

#37A5CD #CD37A5 #A5CD37

tetradic

#37A5CD #AA37CD #CD5F37 #5ACD37

square

#37A5CD #AA37CD #CD5F37 #5ACD37

split-complementary

#37A5CD #CD375A #CDAA37

monochromatic

#1C586E #287F9F #37A5CD #68BBD9 #99D1E5

Accessibility & contrast

On white

2.83

#37A5CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.43

#37A5CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A5CD

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A5CD	#FFFFFF	#000000	##000000
##37A5CD	1.00	2.83	7.43	7.43
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.43	21.00	1.00	1.00
##000000	7.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A2CF

Deuteranopia (green-blind)

#7B93CD

Tritanopia (blue-blind)

#00B1B2

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #37a5cd;
/* rgb */ color: rgb(55, 165, 205);
/* oklch */ color: oklch(67.7% 0.113 226.7);

Tailwind

colors: {
  custom: {
    50: '#82bfdc',
    500: '#37a5cd',
    950: '#000000',
  },
}

SCSS

$custom: #37a5cd;
$custom-light: #82bfdc;
$custom-dark: #000000;

JSON

{
  "hex": "#37a5cd",
  "rgb": {
    "r": 55,
    "g": 165,
    "b": 205
  },
  "hsl": {
    "h": 196,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.67748,
    "c": 0.11285,
    "h": 226.7
  },
  "luminance": 0.3213
}

Semantic roles & 50–950 ramp

primary

#37A5CD

secondary

#D1A08F

accent

#6F45E3

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A5CD

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

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