#40BFE1#40BFE1

#40BFE1 is a light, moderate cyan. Relative luminance 0.438; OKLCH L 75.0% C 0.118 H 219.6°. Best body text is #000000 at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#40BFE1
RGB	rgb(64, 191, 225)
HSL	hsl(193, 73%, 57%)
HSV	hsv(193, 72%, 88%)
CMYK	cmyk(71.6%, 15.1%, 0%, 11.8%)
CIE-LAB	lab(72.08, -23.59, -26.98)
CIE-LCH	lch(72.08, 35.84, 228.83°)
OKLab	oklab(74.98% -0.0911 -0.0753)
OKLCH	oklch(74.98% 0.118 219.6)
XYZ	xyz(34.3301, 43.7838, 77.8614)
Luminance	0.4379 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BFE1 #E16240

analogous

#40E1B3 #40BFE1 #406FE1

triadic

#40BFE1 #E140BF #BFE140

tetradic

#40BFE1 #B340E1 #E16240 #6FE140

square

#40BFE1 #B340E1 #E16240 #6FE140

split-complementary

#40BFE1 #E1406F #E1B340

monochromatic

#177690 #1FA2C5 #40BFE1 #75D1E9 #AAE2F2

Accessibility & contrast

On white

2.15

#40BFE1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.76

#40BFE1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BFE1

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BFE1	#FFFFFF	#000000	##000000
##40BFE1	1.00	2.15	9.76	9.76
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.76	21.00	1.00	1.00
##000000	9.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABAE3

Deuteranopia (green-blind)

#94AAE1

Tritanopia (blue-blind)

#00CACA

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #40bfe1;
/* rgb */ color: rgb(64, 191, 225);
/* oklch */ color: oklch(75.0% 0.118 219.6);

Tailwind

colors: {
  custom: {
    50: '#8ad2ea',
    500: '#40bfe1',
    950: '#000000',
  },
}

SCSS

$custom: #40bfe1;
$custom-light: #8ad2ea;
$custom-dark: #000000;

JSON

{
  "hex": "#40bfe1",
  "rgb": {
    "r": 64,
    "g": 191,
    "b": 225
  },
  "hsl": {
    "h": 192.671,
    "s": 72.851,
    "l": 56.667
  },
  "oklch": {
    "l": 0.74982,
    "c": 0.11819,
    "h": 219.6
  },
  "luminance": 0.43788
}

Semantic roles & 50–950 ramp

primary

#40BFE1

secondary

#DFAB9D

accent

#5F38F0

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40BFE1

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

Preview Lab → · Contrast checker → · Palette generator →