#37A6DA#37A6DA

#37A6DA is a light, vivid cyan. Relative luminance 0.331; OKLCH L 68.6% C 0.124 H 233.4°. Best body text is #000000 at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#37A6DA
RGB	rgb(55, 166, 218)
HSL	hsl(199, 69%, 54%)
HSV	hsv(199, 75%, 85%)
CMYK	cmyk(74.8%, 23.9%, 0%, 14.5%)
CIE-LAB	lab(64.28, -13.88, -35.22)
CIE-LCH	lch(64.28, 37.86, 248.50°)
OKLab	oklab(68.59% -0.0737 -0.0992)
OKLCH	oklch(68.59% 0.124 233.4)
XYZ	xyz(27.8616, 33.1433, 71.2450)
Luminance	0.3315 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A6DA #DA6B37

analogous

#37DABC #37A6DA #3754DA

triadic

#37A6DA #DA37A6 #A6DA37

tetradic

#37A6DA #BC37DA #DA6B37 #54DA37

square

#37A6DA #BC37DA #DA6B37 #54DA37

split-complementary

#37A6DA #DA3754 #DABC37

monochromatic

#185E7F #2184B3 #37A6DA #6BBDE4 #9ED4ED

Accessibility & contrast

On white

2.75

#37A6DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.63

#37A6DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A6DA

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A6DA	#FFFFFF	#000000	##000000
##37A6DA	1.00	2.75	7.63	7.63
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.63	21.00	1.00	1.00
##000000	7.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CA5DC

Deuteranopia (green-blind)

#7695D9

Tritanopia (blue-blind)

#00B4B8

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #37a6da;
/* rgb */ color: rgb(55, 166, 218);
/* oklch */ color: oklch(68.6% 0.124 233.4);

Tailwind

colors: {
  custom: {
    50: '#84c0e5',
    500: '#37a6da',
    950: '#000000',
  },
}

SCSS

$custom: #37a6da;
$custom-light: #84c0e5;
$custom-dark: #000000;

JSON

{
  "hex": "#37a6da",
  "rgb": {
    "r": 55,
    "g": 166,
    "b": 218
  },
  "hsl": {
    "h": 199.141,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.68586,
    "c": 0.12359,
    "h": 233.4
  },
  "luminance": 0.33147
}

Semantic roles & 50–950 ramp

primary

#37A6DA

secondary

#D9AA93

accent

#743CEC

background

#F8FBFE

surface

#F0F7FC

border

#CBD0D5

text

#0C1216

muted

#7D8184

Preview Lab

Preview with #37A6DA

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

Preview Lab → · Contrast checker → · Palette generator →