#37A5CA#37A5CA

#37A5CA is a light, moderate cyan. Relative luminance 0.320; OKLCH L 67.6% C 0.111 H 224.8°. Best body text is #000000 at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#37A5CA
RGB	rgb(55, 165, 202)
HSL	hsl(195, 58%, 50%)
HSV	hsv(195, 73%, 79%)
CMYK	cmyk(72.8%, 18.3%, 0%, 20.8%)
CIE-LAB	lab(63.33, -18.67, -27.82)
CIE-LCH	lch(63.33, 33.50, 236.13°)
OKLab	oklab(67.61% -0.0785 -0.0779)
OKLCH	oklch(67.61% 0.111 224.8)
XYZ	xyz(25.6870, 31.9838, 60.6854)
Luminance	0.3199 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A5CA #CA5C37

analogous

#37CAA5 #37A5CA #375BCA

triadic

#37A5CA #CA37A5 #A5CA37

tetradic

#37A5CA #A537CA #CA5C37 #5BCA37

square

#37A5CA #A537CA #CA5C37 #5BCA37

split-complementary

#37A5CA #CA375B #CAA537

monochromatic

#1C576A #297E9B #37A5CA #67BBD7 #98D1E4

Accessibility & contrast

On white

2.84

#37A5CA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.40

#37A5CA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A5CA

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A5CA	#FFFFFF	#000000	##000000
##37A5CA	1.00	2.84	7.40	7.40
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.40	21.00	1.00	1.00
##000000	7.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A1CC

Deuteranopia (green-blind)

#7C93CA

Tritanopia (blue-blind)

#00B0B1

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #37a5ca;
/* rgb */ color: rgb(55, 165, 202);
/* oklch */ color: oklch(67.6% 0.111 224.8);

Tailwind

colors: {
  custom: {
    50: '#82bfda',
    500: '#37a5ca',
    950: '#000000',
  },
}

SCSS

$custom: #37a5ca;
$custom-light: #82bfda;
$custom-dark: #000000;

JSON

{
  "hex": "#37a5ca",
  "rgb": {
    "r": 55,
    "g": 165,
    "b": 202
  },
  "hsl": {
    "h": 195.102,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.67614,
    "c": 0.11058,
    "h": 224.8
  },
  "luminance": 0.31987
}

Semantic roles & 50–950 ramp

primary

#37A5CA

secondary

#CF9E8E

accent

#6D46E1

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37A5CA

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

Preview Lab → · Contrast checker → · Palette generator →