#40E7FF#40E7FF

#40E7FF is a very light, vivid teal. Relative luminance 0.655; OKLCH L 85.5% C 0.135 H 209.4°. Best body text is #000000 at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#40E7FF
RGB	rgb(64, 231, 255)
HSL	hsl(188, 100%, 63%)
HSV	hsv(188, 75%, 100%)
CMYK	cmyk(74.9%, 9.4%, 0%, 0%)
CIE-LAB	lab(84.72, -33.94, -23.72)
CIE-LCH	lch(84.72, 41.41, 214.95°)
OKLab	oklab(85.5% -0.1172 -0.066)
OKLCH	oklch(85.5% 0.135 209.4)
XYZ	xyz(48.7324, 65.4559, 104.6542)
Luminance	0.6546 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40E7FF #FF5840

analogous

#40FFB7 #40E7FF #4088FF

triadic

#40E7FF #FF40E7 #E7FF40

tetradic

#40E7FF #B740FF #FF5840 #88FF40

square

#40E7FF #B740FF #FF5840 #88FF40

split-complementary

#40E7FF #FF4088 #FFB740

monochromatic

#00ACC5 #03DFFF #40E7FF #7DEFFF #BAF6FF

Accessibility & contrast

On white

1.49

#40E7FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.09

#40E7FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40E7FF

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40E7FF	#FFFFFF	#000000	##000000
##40E7FF	1.00	1.49	14.09	14.09
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.09	21.00	1.00	1.00
##000000	14.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2DEFF

Deuteranopia (green-blind)

#B8CBFF

Tritanopia (blue-blind)

#00F2EE

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #40e7ff;
/* rgb */ color: rgb(64, 231, 255);
/* oklch */ color: oklch(85.5% 0.135 209.4);

Tailwind

colors: {
  custom: {
    50: '#91efff',
    500: '#40e7ff',
    950: '#000000',
  },
}

SCSS

$custom: #40e7ff;
$custom-light: #91efff;
$custom-dark: #000000;

JSON

{
  "hex": "#40e7ff",
  "rgb": {
    "r": 64,
    "g": 231,
    "b": 255
  },
  "hsl": {
    "h": 187.539,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.85504,
    "c": 0.13457,
    "h": 209.4
  },
  "luminance": 0.65462
}

Semantic roles & 50–950 ramp

primary

#40E7FF

secondary

#C13622

accent

#1D00E6

background

#FCFFFF

surface

#F5FEFF

border

#CFD6D7

text

#0F1618

muted

#808586

Preview Lab

Preview with #40E7FF

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

Preview Lab → · Contrast checker → · Palette generator →