#37A0CC#37A0CC

#37A0CC is a light, moderate cyan. Relative luminance 0.303; OKLCH L 66.5% C 0.114 H 230.2°. Best body text is #000000 at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#37A0CC
RGB	rgb(55, 160, 204)
HSL	hsl(198, 59%, 51%)
HSV	hsv(198, 73%, 80%)
CMYK	cmyk(73%, 21.6%, 0%, 20%)
CIE-LAB	lab(61.92, -15.33, -31.11)
CIE-LCH	lch(61.92, 34.68, 243.76°)
OKLab	oklab(66.51% -0.0729 -0.0874)
OKLCH	oklch(66.51% 0.114 230.2)
XYZ	xyz(25.0410, 30.3106, 61.6458)
Luminance	0.3031 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A0CC #CC6337

analogous

#37CCAD #37A0CC #3755CC

triadic

#37A0CC #CC37A0 #A0CC37

tetradic

#37A0CC #AD37CC #CC6337 #55CC37

square

#37A0CC #AD37CC #CC6337 #55CC37

split-complementary

#37A0CC #CC3755 #CCAD37

monochromatic

#1C556D #287B9E #37A0CC #68B7D8 #99CEE5

Accessibility & contrast

On white

2.97

#37A0CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.06

#37A0CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A0CC

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A0CC	#FFFFFF	#000000	##000000
##37A0CC	1.00	2.97	7.06	7.06
#FFFFFF	2.97	1.00	21.00	21.00
#000000	7.06	21.00	1.00	1.00
##000000	7.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899ECE

Deuteranopia (green-blind)

#758FCB

Tritanopia (blue-blind)

#00ACAF

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #37a0cc;
/* rgb */ color: rgb(55, 160, 204);
/* oklch */ color: oklch(66.5% 0.114 230.2);

Tailwind

colors: {
  custom: {
    50: '#82bcdb',
    500: '#37a0cc',
    950: '#000000',
  },
}

SCSS

$custom: #37a0cc;
$custom-light: #82bcdb;
$custom-dark: #000000;

JSON

{
  "hex": "#37a0cc",
  "rgb": {
    "r": 55,
    "g": 160,
    "b": 204
  },
  "hsl": {
    "h": 197.718,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.66514,
    "c": 0.11376,
    "h": 230.2
  },
  "luminance": 0.30313
}

Semantic roles & 50–950 ramp

primary

#37A0CC

secondary

#D0A28E

accent

#7445E3

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A0CC

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

Preview Lab → · Contrast checker → · Palette generator →