#40C0DF#40C0DF

#40C0DF is a light, moderate cyan. Relative luminance 0.441; OKLCH L 75.1% C 0.117 H 217.5°. Best body text is #000000 at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#40C0DF
RGB	rgb(64, 192, 223)
HSL	hsl(192, 71%, 56%)
HSV	hsv(192, 71%, 87%)
CMYK	cmyk(71.3%, 13.9%, 0%, 12.5%)
CIE-LAB	lab(72.30, -24.72, -25.56)
CIE-LCH	lch(72.30, 35.56, 225.95°)
OKLab	oklab(75.13% -0.0928 -0.0713)
OKLCH	oklch(75.13% 0.117 217.5)
XYZ	xyz(34.2777, 44.1130, 76.5058)
Luminance	0.4412 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C0DF #DF5F40

analogous

#40DFAF #40C0DF #4071DF

triadic

#40C0DF #DF40C0 #C0DF40

tetradic

#40C0DF #AF40DF #DF5F40 #71DF40

square

#40C0DF #AF40DF #DF5F40 #71DF40

split-complementary

#40C0DF #DF4071 #DFAF40

monochromatic

#18768D #20A2C1 #40C0DF #74D1E8 #A9E3F1

Accessibility & contrast

On white

2.14

#40C0DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.82

#40C0DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C0DF

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C0DF	#FFFFFF	#000000	##000000
##40C0DF	1.00	2.14	9.82	9.82
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.82	21.00	1.00	1.00
##000000	9.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACBAE1

Deuteranopia (green-blind)

#96AADF

Tritanopia (blue-blind)

#00CBCA

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #40c0df;
/* rgb */ color: rgb(64, 192, 223);
/* oklch */ color: oklch(75.1% 0.117 217.5);

Tailwind

colors: {
  custom: {
    50: '#8ad3e9',
    500: '#40c0df',
    950: '#000000',
  },
}

SCSS

$custom: #40c0df;
$custom-light: #8ad3e9;
$custom-dark: #000000;

JSON

{
  "hex": "#40c0df",
  "rgb": {
    "r": 64,
    "g": 192,
    "b": 223
  },
  "hsl": {
    "h": 191.698,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.75135,
    "c": 0.11702,
    "h": 217.5
  },
  "luminance": 0.44117
}

Semantic roles & 50–950 ramp

primary

#40C0DF

secondary

#DEA99D

accent

#5D3AEE

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40C0DF

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

Preview Lab → · Contrast checker → · Palette generator →