#40B6CF#40B6CF

#40B6CF is a light, moderate cyan. Relative luminance 0.391; OKLCH L 72.1% C 0.108 H 214.7°. Best body text is #000000 at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#40B6CF
RGB	rgb(64, 182, 207)
HSL	hsl(190, 60%, 53%)
HSV	hsv(190, 69%, 81%)
CMYK	cmyk(69.1%, 12.1%, 0%, 18.8%)
CIE-LAB	lab(68.79, -24.64, -22.19)
CIE-LCH	lch(68.79, 33.17, 222.00°)
OKLab	oklab(72.12% -0.0892 -0.0618)
OKLCH	oklch(72.12% 0.109 214.7)
XYZ	xyz(30.1001, 39.0475, 64.9699)
Luminance	0.3905 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B6CF #CF5940

analogous

#40CFA1 #40B6CF #406ECF

triadic

#40B6CF #CF40B6 #B6CF40

tetradic

#40B6CF #A140CF #CF5940 #6ECF40

square

#40B6CF #A140CF #CF5940 #6ECF40

split-complementary

#40B6CF #CF406E #CFA140

monochromatic

#1E6777 #2A92A8 #40B6CF #71C9DB #A2DBE8

Accessibility & contrast

On white

2.38

#40B6CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.81

#40B6CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B6CF

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B6CF	#FFFFFF	#000000	##000000
##40B6CF	1.00	2.38	8.81	8.81
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.81	21.00	1.00	1.00
##000000	8.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B0D0

Deuteranopia (green-blind)

#90A1CF

Tritanopia (blue-blind)

#00BFBE

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #40b6cf;
/* rgb */ color: rgb(64, 182, 207);
/* oklch */ color: oklch(72.1% 0.108 214.7);

Tailwind

colors: {
  custom: {
    50: '#87ccdd',
    500: '#40b6cf',
    950: '#000000',
  },
}

SCSS

$custom: #40b6cf;
$custom-light: #87ccdd;
$custom-dark: #000000;

JSON

{
  "hex": "#40b6cf",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 207
  },
  "hsl": {
    "h": 190.49,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.72117,
    "c": 0.1085,
    "h": 214.7
  },
  "luminance": 0.39051
}

Semantic roles & 50–950 ramp

primary

#40B6CF

secondary

#D4A197

accent

#6045E3

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B6CF

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

Preview Lab → · Contrast checker → · Palette generator →