#37AFCB#37AFCB

#37AFCB is a light, moderate cyan. Relative luminance 0.358; OKLCH L 70.1% C 0.110 H 217.0°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#37AFCB
RGB	rgb(55, 175, 203)
HSL	hsl(191, 59%, 51%)
HSV	hsv(191, 73%, 80%)
CMYK	cmyk(72.9%, 13.8%, 0%, 20.4%)
CIE-LAB	lab(66.35, -23.54, -23.73)
CIE-LCH	lch(66.35, 33.43, 225.22°)
OKLab	oklab(70.05% -0.0879 -0.0662)
OKLCH	oklch(70.05% 0.11 217)
XYZ	xyz(27.6805, 35.7807, 61.9358)
Luminance	0.3578 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37AFCB #CB5337

analogous

#37CB9D #37AFCB #3765CB

triadic

#37AFCB #CB37AF #AFCB37

tetradic

#37AFCB #9D37CB #CB5337 #65CB37

square

#37AFCB #9D37CB #CB5337 #65CB37

split-complementary

#37AFCB #CB3765 #CB9D37

monochromatic

#1C5D6C #29869C #37AFCB #68C2D8 #98D6E4

Accessibility & contrast

On white

2.57

#37AFCB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#37AFCB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AFCB

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37AFCB	#FFFFFF	#000000	##000000
##37AFCB	1.00	2.57	8.16	8.16
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.16	21.00	1.00	1.00
##000000	8.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CAACD

Deuteranopia (green-blind)

#889BCB

Tritanopia (blue-blind)

#00B9B8

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #37afcb;
/* rgb */ color: rgb(55, 175, 203);
/* oklch */ color: oklch(70.1% 0.110 217.0);

Tailwind

colors: {
  custom: {
    50: '#83c7db',
    500: '#37afcb',
    950: '#000000',
  },
}

SCSS

$custom: #37afcb;
$custom-light: #83c7db;
$custom-dark: #000000;

JSON

{
  "hex": "#37afcb",
  "rgb": {
    "r": 55,
    "g": 175,
    "b": 203
  },
  "hsl": {
    "h": 191.351,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.70052,
    "c": 0.11006,
    "h": 217
  },
  "luminance": 0.35784
}

Semantic roles & 50–950 ramp

primary

#37AFCB

secondary

#D09A8E

accent

#6346E2

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37AFCB

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

Preview Lab → · Contrast checker → · Palette generator →