#37A7D4#37A7D4

#37A7D4 is a light, moderate cyan. Relative luminance 0.332; OKLCH L 68.5% C 0.118 H 229.4°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#37A7D4
RGB	rgb(55, 167, 212)
HSL	hsl(197, 65%, 52%)
HSV	hsv(197, 74%, 83%)
CMYK	cmyk(74.1%, 21.2%, 0%, 16.9%)
CIE-LAB	lab(64.32, -16.43, -31.83)
CIE-LCH	lch(64.32, 35.82, 242.70°)
OKLab	oklab(68.54% -0.0768 -0.0894)
OKLCH	oklch(68.54% 0.118 229.4)
XYZ	xyz(27.2731, 33.1999, 67.2454)
Luminance	0.3320 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A7D4 #D46437

analogous

#37D4B2 #37A7D4 #3759D4

triadic

#37A7D4 #D437A7 #A7D437

tetradic

#37A7D4 #B237D4 #D46437 #59D437

square

#37A7D4 #B237D4 #D46437 #59D437

split-complementary

#37A7D4 #D43759 #D4B237

monochromatic

#1A5C77 #2483A9 #37A7D4 #69BDDF #9CD3EA

Accessibility & contrast

On white

2.75

#37A7D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.64

#37A7D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A7D4

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A7D4	#FFFFFF	#000000	##000000
##37A7D4	1.00	2.75	7.64	7.64
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.64	21.00	1.00	1.00
##000000	7.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A4D6

Deuteranopia (green-blind)

#7B95D3

Tritanopia (blue-blind)

#00B4B6

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #37a7d4;
/* rgb */ color: rgb(55, 167, 212);
/* oklch */ color: oklch(68.5% 0.118 229.4);

Tailwind

colors: {
  custom: {
    50: '#83c1e1',
    500: '#37a7d4',
    950: '#000000',
  },
}

SCSS

$custom: #37a7d4;
$custom-light: #83c1e1;
$custom-dark: #000000;

JSON

{
  "hex": "#37a7d4",
  "rgb": {
    "r": 55,
    "g": 167,
    "b": 212
  },
  "hsl": {
    "h": 197.197,
    "s": 64.609,
    "l": 52.353
  },
  "oklch": {
    "l": 0.6854,
    "c": 0.11784,
    "h": 229.4
  },
  "luminance": 0.33203
}

Semantic roles & 50–950 ramp

primary

#37A7D4

secondary

#D6A591

accent

#7040E8

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A7D4

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

Preview Lab → · Contrast checker → · Palette generator →