#37A4DA#37A4DA

#37A4DA is a light, vivid cyan. Relative luminance 0.324; OKLCH L 68.1% C 0.125 H 234.8°. Best body text is #000000 at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#37A4DA
RGB	rgb(55, 164, 218)
HSL	hsl(200, 69%, 54%)
HSV	hsv(200, 75%, 85%)
CMYK	cmyk(74.8%, 24.8%, 0%, 14.5%)
CIE-LAB	lab(63.69, -12.79, -36.14)
CIE-LCH	lch(63.69, 38.33, 250.51°)
OKLab	oklab(68.12% -0.0718 -0.1018)
OKLCH	oklch(68.12% 0.125 234.8)
XYZ	xyz(27.5008, 32.4219, 71.1247)
Luminance	0.3242 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A4DA #DA6D37

analogous

#37DABE #37A4DA #3752DA

triadic

#37A4DA #DA37A4 #A4DA37

tetradic

#37A4DA #BE37DA #DA6D37 #52DA37

square

#37A4DA #BE37DA #DA6D37 #52DA37

split-complementary

#37A4DA #DA3752 #DABE37

monochromatic

#185D7F #2182B3 #37A4DA #6BBBE4 #9ED3ED

Accessibility & contrast

On white

2.81

#37A4DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.49

#37A4DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A4DA

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A4DA	#FFFFFF	#000000	##000000
##37A4DA	1.00	2.81	7.49	7.49
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.49	21.00	1.00	1.00
##000000	7.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8AA3DD

Deuteranopia (green-blind)

#7493D9

Tritanopia (blue-blind)

#00B2B6

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #37a4da;
/* rgb */ color: rgb(55, 164, 218);
/* oklch */ color: oklch(68.1% 0.125 234.8);

Tailwind

colors: {
  custom: {
    50: '#84bee5',
    500: '#37a4da',
    950: '#000000',
  },
}

SCSS

$custom: #37a4da;
$custom-light: #84bee5;
$custom-dark: #000000;

JSON

{
  "hex": "#37a4da",
  "rgb": {
    "r": 55,
    "g": 164,
    "b": 218
  },
  "hsl": {
    "h": 199.877,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.68118,
    "c": 0.12462,
    "h": 234.8
  },
  "luminance": 0.32425
}

Semantic roles & 50–950 ramp

primary

#37A4DA

secondary

#D9AB93

accent

#763CEC

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0C1216

muted

#7D8184

Preview Lab

Preview with #37A4DA

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

Preview Lab → · Contrast checker → · Palette generator →