#37A9DA#37A9DA

#37A9DA is a light, vivid cyan. Relative luminance 0.343; OKLCH L 69.3% C 0.122 H 231.2°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#37A9DA
RGB	rgb(55, 169, 218)
HSL	hsl(198, 69%, 54%)
HSV	hsv(198, 75%, 85%)
CMYK	cmyk(74.8%, 22.5%, 0%, 14.5%)
CIE-LAB	lab(65.16, -15.50, -33.85)
CIE-LCH	lch(65.16, 37.23, 245.40°)
OKLab	oklab(69.29% -0.0766 -0.0952)
OKLCH	oklch(69.29% 0.122 231.2)
XYZ	xyz(28.4133, 34.2467, 71.4289)
Luminance	0.3425 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A9DA #DA6837

analogous

#37DAB9 #37A9DA #3757DA

triadic

#37A9DA #DA37A9 #A9DA37

tetradic

#37A9DA #B937DA #DA6837 #57DA37

square

#37A9DA #B937DA #DA6837 #57DA37

split-complementary

#37A9DA #DA3757 #DAB937

monochromatic

#18607F #2187B3 #37A9DA #6BBFE4 #9ED5ED

Accessibility & contrast

On white

2.68

#37A9DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.85

#37A9DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A9DA

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A9DA	#FFFFFF	#000000	##000000
##37A9DA	1.00	2.68	7.85	7.85
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.85	21.00	1.00	1.00
##000000	7.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A7DC

Deuteranopia (green-blind)

#7A97D9

Tritanopia (blue-blind)

#00B6B9

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #37a9da;
/* rgb */ color: rgb(55, 169, 218);
/* oklch */ color: oklch(69.3% 0.122 231.2);

Tailwind

colors: {
  custom: {
    50: '#84c2e5',
    500: '#37a9da',
    950: '#000000',
  },
}

SCSS

$custom: #37a9da;
$custom-light: #84c2e5;
$custom-dark: #000000;

JSON

{
  "hex": "#37a9da",
  "rgb": {
    "r": 55,
    "g": 169,
    "b": 218
  },
  "hsl": {
    "h": 198.037,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.69289,
    "c": 0.12217,
    "h": 231.2
  },
  "luminance": 0.3425
}

Semantic roles & 50–950 ramp

primary

#37A9DA

secondary

#D9A893

accent

#713CEC

background

#F8FBFE

surface

#F0F7FC

border

#CBD0D5

text

#0C1215

muted

#7D8184

Preview Lab

Preview with #37A9DA

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

Preview Lab → · Contrast checker → · Palette generator →