#40B5CD#40B5CD

#40B5CD is a light, moderate cyan. Relative luminance 0.385; OKLCH L 71.8% C 0.107 H 214.1°. Best body text is #000000 at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#40B5CD
RGB	rgb(64, 181, 205)
HSL	hsl(190, 59%, 53%)
HSV	hsv(190, 69%, 80%)
CMYK	cmyk(68.8%, 11.7%, 0%, 19.6%)
CIE-LAB	lab(68.42, -24.76, -21.66)
CIE-LCH	lch(68.42, 32.89, 221.18°)
OKLab	oklab(71.8% -0.089 -0.0603)
OKLCH	oklch(71.8% 0.107 214.1)
XYZ	xyz(29.6530, 38.5422, 63.6224)
Luminance	0.3855 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B5CD #CD5840

analogous

#40CD9F #40B5CD #406ECD

triadic

#40B5CD #CD40B5 #B5CD40

tetradic

#40B5CD #9F40CD #CD5840 #6ECD40

square

#40B5CD #9F40CD #CD5840 #6ECD40

split-complementary

#40B5CD #CD406E #CD9F40

monochromatic

#1E6674 #2B90A5 #40B5CD #71C8DA #A1DBE6

Accessibility & contrast

On white

2.41

#40B5CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.71

#40B5CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B5CD

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B5CD	#FFFFFF	#000000	##000000
##40B5CD	1.00	2.41	8.71	8.71
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.71	21.00	1.00	1.00
##000000	8.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4AFCE

Deuteranopia (green-blind)

#90A1CD

Tritanopia (blue-blind)

#00BEBC

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #40b5cd;
/* rgb */ color: rgb(64, 181, 205);
/* oklch */ color: oklch(71.8% 0.107 214.1);

Tailwind

colors: {
  custom: {
    50: '#87cbdc',
    500: '#40b5cd',
    950: '#000000',
  },
}

SCSS

$custom: #40b5cd;
$custom-light: #87cbdc;
$custom-dark: #000000;

JSON

{
  "hex": "#40b5cd",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 205
  },
  "hsl": {
    "h": 190.213,
    "s": 58.506,
    "l": 52.745
  },
  "oklch": {
    "l": 0.71798,
    "c": 0.10747,
    "h": 214.1
  },
  "luminance": 0.38546
}

Semantic roles & 50–950 ramp

primary

#40B5CD

secondary

#D3A096

accent

#6146E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B5CD

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

Preview Lab → · Contrast checker → · Palette generator →