#37A5C8#37A5C8

#37A5C8 is a light, moderate cyan. Relative luminance 0.319; OKLCH L 67.5% C 0.109 H 223.4°. Best body text is #000000 at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#37A5C8
RGB	rgb(55, 165, 200)
HSL	hsl(194, 57%, 50%)
HSV	hsv(194, 73%, 78%)
CMYK	cmyk(72.5%, 17.5%, 0%, 21.6%)
CIE-LAB	lab(63.25, -19.32, -26.82)
CIE-LCH	lch(63.25, 33.06, 234.23°)
OKLab	oklab(67.53% -0.0792 -0.075)
OKLCH	oklch(67.53% 0.109 223.4)
XYZ	xyz(25.4517, 31.8897, 59.4463)
Luminance	0.3189 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A5C8 #C85A37

analogous

#37C8A3 #37A5C8 #375CC8

triadic

#37A5C8 #C837A5 #A5C837

tetradic

#37A5C8 #A337C8 #C85A37 #5CC837

square

#37A5C8 #A337C8 #C85A37 #5CC837

split-complementary

#37A5C8 #C8375C #C8A337

monochromatic

#1D5668 #2A7D98 #37A5C8 #67BBD5 #97D0E2

Accessibility & contrast

On white

2.85

#37A5C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.38

#37A5C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A5C8

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A5C8	#FFFFFF	#000000	##000000
##37A5C8	1.00	2.85	7.38	7.38
#FFFFFF	2.85	1.00	21.00	21.00
#000000	7.38	21.00	1.00	1.00
##000000	7.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A1CA

Deuteranopia (green-blind)

#7D93C8

Tritanopia (blue-blind)

#00B0B0

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #37a5c8;
/* rgb */ color: rgb(55, 165, 200);
/* oklch */ color: oklch(67.5% 0.109 223.4);

Tailwind

colors: {
  custom: {
    50: '#81bfd8',
    500: '#37a5c8',
    950: '#000000',
  },
}

SCSS

$custom: #37a5c8;
$custom-light: #81bfd8;
$custom-dark: #000000;

JSON

{
  "hex": "#37a5c8",
  "rgb": {
    "r": 55,
    "g": 165,
    "b": 200
  },
  "hsl": {
    "h": 194.483,
    "s": 56.863,
    "l": 50
  },
  "oklch": {
    "l": 0.67526,
    "c": 0.10914,
    "h": 223.4
  },
  "luminance": 0.31893
}

Semantic roles & 50–950 ramp

primary

#37A5C8

secondary

#CE9D8D

accent

#6C48E0

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37A5C8

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

Preview Lab → · Contrast checker → · Palette generator →