#40C8E6#40C8E6

#40C8E6 is a light, vivid cyan. Relative luminance 0.481; OKLCH L 77.3% C 0.121 H 215.9°. Best body text is #000000 at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#40C8E6
RGB	rgb(64, 200, 230)
HSL	hsl(191, 77%, 58%)
HSV	hsv(191, 72%, 90%)
CMYK	cmyk(72.2%, 13%, 0%, 9.8%)
CIE-LAB	lab(74.89, -26.55, -25.38)
CIE-LCH	lch(74.89, 36.73, 223.72°)
OKLab	oklab(77.3% -0.0978 -0.0708)
OKLCH	oklch(77.3% 0.121 215.9)
XYZ	xyz(37.0455, 48.1073, 82.1808)
Luminance	0.4811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C8E6 #E65E40

analogous

#40E6B1 #40C8E6 #4075E6

triadic

#40C8E6 #E640C8 #C8E640

tetradic

#40C8E6 #B140E6 #E65E40 #75E640

square

#40C8E6 #B140E6 #E65E40 #75E640

split-complementary

#40C8E6 #E64075 #E6B140

monochromatic

#148098 #1BAECE #40C8E6 #76D8ED #ACE7F4

Accessibility & contrast

On white

1.98

#40C8E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.62

#40C8E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C8E6

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C8E6	#FFFFFF	#000000	##000000
##40C8E6	1.00	1.98	10.62	10.62
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.62	21.00	1.00	1.00
##000000	10.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C2E8

Deuteranopia (green-blind)

#9DB1E6

Tritanopia (blue-blind)

#00D3D1

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #40c8e6;
/* rgb */ color: rgb(64, 200, 230);
/* oklch */ color: oklch(77.3% 0.121 215.9);

Tailwind

colors: {
  custom: {
    50: '#8bd9ee',
    500: '#40c8e6',
    950: '#000000',
  },
}

SCSS

$custom: #40c8e6;
$custom-light: #8bd9ee;
$custom-dark: #000000;

JSON

{
  "hex": "#40c8e6",
  "rgb": {
    "r": 64,
    "g": 200,
    "b": 230
  },
  "hsl": {
    "h": 190.843,
    "s": 76.852,
    "l": 57.647
  },
  "oklch": {
    "l": 0.77299,
    "c": 0.12074,
    "h": 215.9
  },
  "luminance": 0.48112
}

Semantic roles & 50–950 ramp

primary

#40C8E6

secondary

#E2AC9F

accent

#5734F3

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #40C8E6

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

Preview Lab → · Contrast checker → · Palette generator →