#40C6ED#40C6ED

#40C6ED is a light, vivid cyan. Relative luminance 0.476; OKLCH L 77.1% C 0.125 H 221.7°. Best body text is #000000 at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#40C6ED
RGB	rgb(64, 198, 237)
HSL	hsl(194, 83%, 59%)
HSV	hsv(194, 73%, 93%)
CMYK	cmyk(73%, 16.5%, 0%, 7.1%)
CIE-LAB	lab(74.56, -23.36, -29.66)
CIE-LCH	lch(74.56, 37.75, 231.78°)
OKLab	oklab(77.12% -0.0932 -0.083)
OKLCH	oklch(77.12% 0.125 221.7)
XYZ	xyz(37.5881, 47.5881, 87.3087)
Luminance	0.4759 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C6ED #ED6740

analogous

#40EDBE #40C6ED #4070ED

triadic

#40C6ED #ED40C6 #C6ED40

tetradic

#40C6ED #BE40ED #ED6740 #70ED40

square

#40C6ED #BE40ED #ED6740 #70ED40

split-complementary

#40C6ED #ED4070 #EDBE40

monochromatic

#0F82A3 #15AEDB #40C6ED #78D7F2 #B0E7F8

Accessibility & contrast

On white

2.00

#40C6ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.52

#40C6ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C6ED

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C6ED	#FFFFFF	#000000	##000000
##40C6ED	1.00	2.00	10.52	10.52
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.52	21.00	1.00	1.00
##000000	10.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFC1EF

Deuteranopia (green-blind)

#98B0ED

Tritanopia (blue-blind)

#00D2D3

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #40c6ed;
/* rgb */ color: rgb(64, 198, 237);
/* oklch */ color: oklch(77.1% 0.125 221.7);

Tailwind

colors: {
  custom: {
    50: '#8cd7f3',
    500: '#40c6ed',
    950: '#000000',
  },
}

SCSS

$custom: #40c6ed;
$custom-light: #8cd7f3;
$custom-dark: #000000;

JSON

{
  "hex": "#40c6ed",
  "rgb": {
    "r": 64,
    "g": 198,
    "b": 237
  },
  "hsl": {
    "h": 193.526,
    "s": 82.775,
    "l": 59.02
  },
  "oklch": {
    "l": 0.7712,
    "c": 0.12481,
    "h": 221.7
  },
  "luminance": 0.47593
}

Semantic roles & 50–950 ramp

primary

#40C6ED

secondary

#E6B2A2

accent

#5C2FF9

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1417

muted

#7E8385

Preview Lab

Preview with #40C6ED

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

Preview Lab → · Contrast checker → · Palette generator →