#40BFE7#40BFE7

#40BFE7 is a light, vivid cyan. Relative luminance 0.441; OKLCH L 75.2% C 0.122 H 223.3°. Best body text is #000000 at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#40BFE7
RGB	rgb(64, 191, 231)
HSL	hsl(194, 78%, 58%)
HSV	hsv(194, 72%, 91%)
CMYK	cmyk(72.3%, 17.3%, 0%, 9.4%)
CIE-LAB	lab(72.31, -21.69, -29.89)
CIE-LCH	lch(72.31, 36.94, 234.03°)
OKLab	oklab(75.24% -0.0888 -0.0836)
OKLCH	oklch(75.24% 0.122 223.3)
XYZ	xyz(35.1630, 44.1170, 82.2480)
Luminance	0.4412 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BFE7 #E76840

analogous

#40E7BB #40BFE7 #406CE7

triadic

#40BFE7 #E740BF #BFE740

tetradic

#40BFE7 #BB40E7 #E76840 #6CE740

square

#40BFE7 #BB40E7 #E76840 #6CE740

split-complementary

#40BFE7 #E7406C #E7BB40

monochromatic

#137999 #1AA4D0 #40BFE7 #76D1EE #ADE3F5

Accessibility & contrast

On white

2.14

#40BFE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.82

#40BFE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BFE7

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BFE7	#FFFFFF	#000000	##000000
##40BFE7	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)

#A8BBE9

Deuteranopia (green-blind)

#91AAE7

Tritanopia (blue-blind)

#00CBCC

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #40bfe7;
/* rgb */ color: rgb(64, 191, 231);
/* oklch */ color: oklch(75.2% 0.122 223.3);

Tailwind

colors: {
  custom: {
    50: '#8bd2ee',
    500: '#40bfe7',
    950: '#000000',
  },
}

SCSS

$custom: #40bfe7;
$custom-light: #8bd2ee;
$custom-dark: #000000;

JSON

{
  "hex": "#40bfe7",
  "rgb": {
    "r": 64,
    "g": 191,
    "b": 231
  },
  "hsl": {
    "h": 194.371,
    "s": 77.674,
    "l": 57.843
  },
  "oklch": {
    "l": 0.75235,
    "c": 0.122,
    "h": 223.3
  },
  "luminance": 0.44121
}

Semantic roles & 50–950 ramp

primary

#40BFE7

secondary

#E3B0A0

accent

#6234F4

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40BFE7

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

Preview Lab → · Contrast checker → · Palette generator →