#40B6D7#40B6D7

#40B6D7 is a light, moderate cyan. Relative luminance 0.395; OKLCH L 72.4% C 0.113 H 220.3°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#40B6D7
RGB	rgb(64, 182, 215)
HSL	hsl(193, 65%, 55%)
HSV	hsv(193, 70%, 84%)
CMYK	cmyk(70.2%, 15.3%, 0%, 15.7%)
CIE-LAB	lab(69.08, -22.15, -26.14)
CIE-LCH	lch(69.08, 34.26, 229.73°)
OKLab	oklab(72.45% -0.0861 -0.073)
OKLCH	oklch(72.45% 0.113 220.3)
XYZ	xyz(31.1030, 39.4486, 70.2519)
Luminance	0.3945 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B6D7 #D76140

analogous

#40D7AD #40B6D7 #406AD7

triadic

#40B6D7 #D740B6 #B6D740

tetradic

#40B6D7 #AD40D7 #D76140 #6AD740

square

#40B6D7 #AD40D7 #D76140 #6AD740

split-complementary

#40B6D7 #D7406A #D7AD40

monochromatic

#1B6B81 #2695B4 #40B6D7 #73C9E2 #A5DDEC

Accessibility & contrast

On white

2.36

#40B6D7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.89

#40B6D7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B6D7

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B6D7	#FFFFFF	#000000	##000000
##40B6D7	1.00	2.36	8.89	8.89
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.89	21.00	1.00	1.00
##000000	8.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B1D9

Deuteranopia (green-blind)

#8DA2D7

Tritanopia (blue-blind)

#00C1C0

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #40b6d7;
/* rgb */ color: rgb(64, 182, 215);
/* oklch */ color: oklch(72.4% 0.113 220.3);

Tailwind

colors: {
  custom: {
    50: '#88cce3',
    500: '#40b6d7',
    950: '#000000',
  },
}

SCSS

$custom: #40b6d7;
$custom-light: #88cce3;
$custom-dark: #000000;

JSON

{
  "hex": "#40b6d7",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 215
  },
  "hsl": {
    "h": 193.113,
    "s": 65.368,
    "l": 54.706
  },
  "oklch": {
    "l": 0.72445,
    "c": 0.11285,
    "h": 220.3
  },
  "luminance": 0.39452
}

Semantic roles & 50–950 ramp

primary

#40B6D7

secondary

#D9A79A

accent

#643FE8

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B6D7

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

Preview Lab → · Contrast checker → · Palette generator →