#37A7CB#37A7CB

#37A7CB is a light, moderate cyan. Relative luminance 0.328; OKLCH L 68.1% C 0.111 H 223.8°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#37A7CB
RGB	rgb(55, 167, 203)
HSL	hsl(195, 59%, 51%)
HSV	hsv(195, 73%, 80%)
CMYK	cmyk(72.9%, 17.7%, 0%, 20.4%)
CIE-LAB	lab(63.96, -19.40, -27.39)
CIE-LCH	lch(63.96, 33.57, 234.70°)
OKLab	oklab(68.14% -0.0801 -0.0767)
OKLCH	oklch(68.14% 0.111 223.8)
XYZ	xyz(26.1693, 32.7584, 61.4321)
Luminance	0.3276 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A7CB #CB5B37

analogous

#37CBA5 #37A7CB #375DCB

triadic

#37A7CB #CB37A7 #A7CB37

tetradic

#37A7CB #A537CB #CB5B37 #5DCB37

square

#37A7CB #A537CB #CB5B37 #5DCB37

split-complementary

#37A7CB #CB375D #CBA537

monochromatic

#1C586C #29809C #37A7CB #68BCD8 #98D2E4

Accessibility & contrast

On white

2.78

#37A7CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#37A7CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A7CB

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A7CB	#FFFFFF	#000000	##000000
##37A7CB	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93A3CD

Deuteranopia (green-blind)

#7F95CB

Tritanopia (blue-blind)

#00B2B3

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #37a7cb;
/* rgb */ color: rgb(55, 167, 203);
/* oklch */ color: oklch(68.1% 0.111 223.8);

Tailwind

colors: {
  custom: {
    50: '#82c1db',
    500: '#37a7cb',
    950: '#000000',
  },
}

SCSS

$custom: #37a7cb;
$custom-light: #82c1db;
$custom-dark: #000000;

JSON

{
  "hex": "#37a7cb",
  "rgb": {
    "r": 55,
    "g": 167,
    "b": 203
  },
  "hsl": {
    "h": 194.595,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.68136,
    "c": 0.11086,
    "h": 223.8
  },
  "luminance": 0.32761
}

Semantic roles & 50–950 ramp

primary

#37A7CB

secondary

#D09E8E

accent

#6C46E2

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A7CB

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

Preview Lab → · Contrast checker → · Palette generator →