#40C0E7#40C0E7

#40C0E7 is a light, vivid cyan. Relative luminance 0.446; OKLCH L 75.5% C 0.122 H 222.5°. Best body text is #000000 at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#40C0E7
RGB	rgb(64, 192, 231)
HSL	hsl(194, 78%, 58%)
HSV	hsv(194, 72%, 91%)
CMYK	cmyk(72.3%, 16.9%, 0%, 9.4%)
CIE-LAB	lab(72.60, -22.21, -29.44)
CIE-LCH	lch(72.60, 36.88, 232.98°)
OKLab	oklab(75.47% -0.0898 -0.0824)
OKLCH	oklch(75.47% 0.122 222.5)
XYZ	xyz(35.3818, 44.5546, 82.3210)
Luminance	0.4456 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C0E7 #E76740

analogous

#40E7BA #40C0E7 #406CE7

triadic

#40C0E7 #E740C0 #C0E740

tetradic

#40C0E7 #BA40E7 #E76740 #6CE740

square

#40C0E7 #BA40E7 #E76740 #6CE740

split-complementary

#40C0E7 #E7406C #E7BA40

monochromatic

#137A99 #1AA5D0 #40C0E7 #76D2EE #ADE4F5

Accessibility & contrast

On white

2.12

#40C0E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.91

#40C0E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C0E7

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C0E7	#FFFFFF	#000000	##000000
##40C0E7	1.00	2.12	9.91	9.91
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.91	21.00	1.00	1.00
##000000	9.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BBE9

Deuteranopia (green-blind)

#93ABE7

Tritanopia (blue-blind)

#00CCCD

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #40c0e7;
/* rgb */ color: rgb(64, 192, 231);
/* oklch */ color: oklch(75.5% 0.122 222.5);

Tailwind

colors: {
  custom: {
    50: '#8bd3ee',
    500: '#40c0e7',
    950: '#000000',
  },
}

SCSS

$custom: #40c0e7;
$custom-light: #8bd3ee;
$custom-dark: #000000;

JSON

{
  "hex": "#40c0e7",
  "rgb": {
    "r": 64,
    "g": 192,
    "b": 231
  },
  "hsl": {
    "h": 194.012,
    "s": 77.674,
    "l": 57.843
  },
  "oklch": {
    "l": 0.75468,
    "c": 0.12183,
    "h": 222.5
  },
  "luminance": 0.44559
}

Semantic roles & 50–950 ramp

primary

#40C0E7

secondary

#E3B0A0

accent

#6134F4

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40C0E7

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

Preview Lab → · Contrast checker → · Palette generator →