#40B4CD#40B4CD

#40B4CD is a light, moderate cyan. Relative luminance 0.381; OKLCH L 71.6% C 0.107 H 215.0°. Best body text is #000000 at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#40B4CD
RGB	rgb(64, 180, 205)
HSL	hsl(191, 59%, 53%)
HSV	hsv(191, 69%, 80%)
CMYK	cmyk(68.8%, 12.2%, 0%, 19.6%)
CIE-LAB	lab(68.12, -24.25, -22.11)
CIE-LCH	lch(68.12, 32.82, 222.35°)
OKLab	oklab(71.56% -0.088 -0.0616)
OKLCH	oklch(71.56% 0.107 215)
XYZ	xyz(29.4504, 38.1369, 63.5548)
Luminance	0.3814 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B4CD #CD5940

analogous

#40CD9F #40B4CD #406ECD

triadic

#40B4CD #CD40B4 #B4CD40

tetradic

#40B4CD #9F40CD #CD5940 #6ECD40

square

#40B4CD #9F40CD #CD5940 #6ECD40

split-complementary

#40B4CD #CD406E #CD9F40

monochromatic

#1E6574 #2B8FA5 #40B4CD #71C7DA #A1DAE6

Accessibility & contrast

On white

2.43

#40B4CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.63

#40B4CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B4CD

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B4CD	#FFFFFF	#000000	##000000
##40B4CD	1.00	2.43	8.63	8.63
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.63	21.00	1.00	1.00
##000000	8.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2AECE

Deuteranopia (green-blind)

#8EA0CD

Tritanopia (blue-blind)

#00BDBC

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #40b4cd;
/* rgb */ color: rgb(64, 180, 205);
/* oklch */ color: oklch(71.6% 0.107 215.0);

Tailwind

colors: {
  custom: {
    50: '#86cadc',
    500: '#40b4cd',
    950: '#000000',
  },
}

SCSS

$custom: #40b4cd;
$custom-light: #86cadc;
$custom-dark: #000000;

JSON

{
  "hex": "#40b4cd",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 205
  },
  "hsl": {
    "h": 190.638,
    "s": 58.506,
    "l": 52.745
  },
  "oklch": {
    "l": 0.71559,
    "c": 0.10736,
    "h": 215
  },
  "luminance": 0.3814
}

Semantic roles & 50–950 ramp

primary

#40B4CD

secondary

#D3A196

accent

#6246E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B4CD

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

Preview Lab → · Contrast checker → · Palette generator →