#40C7E6#40C7E6

#40C7E6 is a light, vivid cyan. Relative luminance 0.476; OKLCH L 77.1% C 0.121 H 216.7°. Best body text is #000000 at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#40C7E6
RGB	rgb(64, 199, 230)
HSL	hsl(191, 77%, 58%)
HSV	hsv(191, 72%, 90%)
CMYK	cmyk(72.2%, 13.5%, 0%, 9.8%)
CIE-LAB	lab(74.60, -26.05, -25.83)
CIE-LCH	lch(74.60, 36.68, 224.76°)
OKLab	oklab(77.07% -0.0968 -0.0721)
OKLCH	oklch(77.07% 0.121 216.7)
XYZ	xyz(36.8147, 47.6457, 82.1038)
Luminance	0.4765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C7E6 #E65F40

analogous

#40E6B2 #40C7E6 #4074E6

triadic

#40C7E6 #E640C7 #C7E640

tetradic

#40C7E6 #B240E6 #E65F40 #74E640

square

#40C7E6 #B240E6 #E65F40 #74E640

split-complementary

#40C7E6 #E64074 #E6B240

monochromatic

#147F98 #1BACCE #40C7E6 #76D7ED #ACE7F4

Accessibility & contrast

On white

1.99

#40C7E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.53

#40C7E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C7E6

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C7E6	#FFFFFF	#000000	##000000
##40C7E6	1.00	1.99	10.53	10.53
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.53	21.00	1.00	1.00
##000000	10.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2C1E8

Deuteranopia (green-blind)

#9BB0E6

Tritanopia (blue-blind)

#00D2D1

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #40c7e6;
/* rgb */ color: rgb(64, 199, 230);
/* oklch */ color: oklch(77.1% 0.121 216.7);

Tailwind

colors: {
  custom: {
    50: '#8bd8ee',
    500: '#40c7e6',
    950: '#000000',
  },
}

SCSS

$custom: #40c7e6;
$custom-light: #8bd8ee;
$custom-dark: #000000;

JSON

{
  "hex": "#40c7e6",
  "rgb": {
    "r": 64,
    "g": 199,
    "b": 230
  },
  "hsl": {
    "h": 191.205,
    "s": 76.852,
    "l": 57.647
  },
  "oklch": {
    "l": 0.77065,
    "c": 0.12072,
    "h": 216.7
  },
  "luminance": 0.4765
}

Semantic roles & 50–950 ramp

primary

#40C7E6

secondary

#E2AC9F

accent

#5834F3

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #40C7E6

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

Preview Lab → · Contrast checker → · Palette generator →