#40C2E7#40C2E7

#40C2E7 is a light, vivid cyan. Relative luminance 0.454; OKLCH L 75.9% C 0.122 H 221.0°. Best body text is #000000 at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#40C2E7
RGB	rgb(64, 194, 231)
HSL	hsl(193, 78%, 58%)
HSV	hsv(193, 72%, 91%)
CMYK	cmyk(72.3%, 16%, 0%, 9.4%)
CIE-LAB	lab(73.18, -23.22, -28.55)
CIE-LCH	lch(73.18, 36.80, 230.87°)
OKLab	oklab(75.94% -0.0917 -0.0798)
OKLCH	oklch(75.94% 0.122 221)
XYZ	xyz(35.8239, 45.4389, 82.4683)
Luminance	0.4544 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C2E7 #E76540

analogous

#40E7B8 #40C2E7 #406FE7

triadic

#40C2E7 #E740C2 #C2E740

tetradic

#40C2E7 #B840E7 #E76540 #6FE740

square

#40C2E7 #B840E7 #E76540 #6FE740

split-complementary

#40C2E7 #E7406F #E7B840

monochromatic

#137C99 #1AA7D0 #40C2E7 #76D3EE #ADE5F5

Accessibility & contrast

On white

2.08

#40C2E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.09

#40C2E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C2E7

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C2E7	#FFFFFF	#000000	##000000
##40C2E7	1.00	2.08	10.09	10.09
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.09	21.00	1.00	1.00
##000000	10.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACBDE9

Deuteranopia (green-blind)

#95ACE7

Tritanopia (blue-blind)

#00CECE

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #40c2e7;
/* rgb */ color: rgb(64, 194, 231);
/* oklch */ color: oklch(75.9% 0.122 221.0);

Tailwind

colors: {
  custom: {
    50: '#8bd4ee',
    500: '#40c2e7',
    950: '#000000',
  },
}

SCSS

$custom: #40c2e7;
$custom-light: #8bd4ee;
$custom-dark: #000000;

JSON

{
  "hex": "#40c2e7",
  "rgb": {
    "r": 64,
    "g": 194,
    "b": 231
  },
  "hsl": {
    "h": 193.293,
    "s": 77.674,
    "l": 57.843
  },
  "oklch": {
    "l": 0.75935,
    "c": 0.12155,
    "h": 221
  },
  "luminance": 0.45443
}

Semantic roles & 50–950 ramp

primary

#40C2E7

secondary

#E3AFA0

accent

#5E34F4

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #40C2E7

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

Preview Lab → · Contrast checker → · Palette generator →