#37A7DA#37A7DA

#37A7DA is a light, vivid cyan. Relative luminance 0.335; OKLCH L 68.8% C 0.123 H 232.7°. Best body text is #000000 at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#37A7DA
RGB	rgb(55, 167, 218)
HSL	hsl(199, 69%, 54%)
HSV	hsv(199, 75%, 85%)
CMYK	cmyk(74.8%, 23.4%, 0%, 14.5%)
CIE-LAB	lab(64.57, -14.42, -34.77)
CIE-LCH	lch(64.57, 37.64, 247.47°)
OKLab	oklab(68.82% -0.0747 -0.0979)
OKLCH	oklch(68.82% 0.123 232.7)
XYZ	xyz(28.0441, 33.5083, 71.3058)
Luminance	0.3351 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A7DA #DA6A37

analogous

#37DABB #37A7DA #3755DA

triadic

#37A7DA #DA37A7 #A7DA37

tetradic

#37A7DA #BB37DA #DA6A37 #55DA37

square

#37A7DA #BB37DA #DA6A37 #55DA37

split-complementary

#37A7DA #DA3755 #DABB37

monochromatic

#185F7F #2185B3 #37A7DA #6BBEE4 #9ED4ED

Accessibility & contrast

On white

2.73

#37A7DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.70

#37A7DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A7DA

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A7DA	#FFFFFF	#000000	##000000
##37A7DA	1.00	2.73	7.70	7.70
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.70	21.00	1.00	1.00
##000000	7.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EA5DC

Deuteranopia (green-blind)

#7896D9

Tritanopia (blue-blind)

#00B5B8

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #37a7da;
/* rgb */ color: rgb(55, 167, 218);
/* oklch */ color: oklch(68.8% 0.123 232.7);

Tailwind

colors: {
  custom: {
    50: '#84c1e5',
    500: '#37a7da',
    950: '#000000',
  },
}

SCSS

$custom: #37a7da;
$custom-light: #84c1e5;
$custom-dark: #000000;

JSON

{
  "hex": "#37a7da",
  "rgb": {
    "r": 55,
    "g": 167,
    "b": 218
  },
  "hsl": {
    "h": 198.773,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.6882,
    "c": 0.12309,
    "h": 232.7
  },
  "luminance": 0.33512
}

Semantic roles & 50–950 ramp

primary

#37A7DA

secondary

#D9A993

accent

#733CEC

background

#F8FBFE

surface

#F0F7FC

border

#CBD0D5

text

#0C1216

muted

#7D8184

Preview Lab

Preview with #37A7DA

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

Preview Lab → · Contrast checker → · Palette generator →