#40B3CD#40B3CD

#40B3CD is a light, moderate cyan. Relative luminance 0.377; OKLCH L 71.3% C 0.107 H 215.9°. Best body text is #000000 at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#40B3CD
RGB	rgb(64, 179, 205)
HSL	hsl(191, 59%, 53%)
HSV	hsv(191, 69%, 80%)
CMYK	cmyk(68.8%, 12.7%, 0%, 19.6%)
CIE-LAB	lab(67.82, -23.74, -22.56)
CIE-LCH	lch(67.82, 32.75, 223.54°)
OKLab	oklab(71.32% -0.087 -0.0628)
OKLCH	oklch(71.32% 0.107 215.9)
XYZ	xyz(29.2493, 37.7347, 63.4878)
Luminance	0.3774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B3CD #CD5A40

analogous

#40CDA1 #40B3CD #406CCD

triadic

#40B3CD #CD40B3 #B3CD40

tetradic

#40B3CD #A140CD #CD5A40 #6CCD40

square

#40B3CD #A140CD #CD5A40 #6CCD40

split-complementary

#40B3CD #CD406C #CDA140

monochromatic

#1E6474 #2B8EA5 #40B3CD #71C6DA #A1DAE6

Accessibility & contrast

On white

2.46

#40B3CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.55

#40B3CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B3CD

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B3CD	#FFFFFF	#000000	##000000
##40B3CD	1.00	2.46	8.55	8.55
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.55	21.00	1.00	1.00
##000000	8.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1AECE

Deuteranopia (green-blind)

#8D9FCD

Tritanopia (blue-blind)

#00BCBB

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40b3cd;
/* rgb */ color: rgb(64, 179, 205);
/* oklch */ color: oklch(71.3% 0.107 215.9);

Tailwind

colors: {
  custom: {
    50: '#86cadc',
    500: '#40b3cd',
    950: '#000000',
  },
}

SCSS

$custom: #40b3cd;
$custom-light: #86cadc;
$custom-dark: #000000;

JSON

{
  "hex": "#40b3cd",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 205
  },
  "hsl": {
    "h": 191.064,
    "s": 58.506,
    "l": 52.745
  },
  "oklch": {
    "l": 0.7132,
    "c": 0.10729,
    "h": 215.9
  },
  "luminance": 0.37738
}

Semantic roles & 50–950 ramp

primary

#40B3CD

secondary

#D3A196

accent

#6346E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B3CD

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

Preview Lab → · Contrast checker → · Palette generator →