#40C1E0#40C1E0

#40C1E0 is a light, moderate cyan. Relative luminance 0.446; OKLCH L 75.4% C 0.118 H 217.4°. Best body text is #000000 at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#40C1E0
RGB	rgb(64, 193, 224)
HSL	hsl(192, 72%, 56%)
HSV	hsv(192, 71%, 88%)
CMYK	cmyk(71.4%, 13.8%, 0%, 12.2%)
CIE-LAB	lab(72.63, -24.91, -25.60)
CIE-LCH	lch(72.63, 35.72, 225.78°)
OKLab	oklab(75.41% -0.0934 -0.0714)
OKLCH	oklch(75.41% 0.118 217.4)
XYZ	xyz(34.6332, 44.6077, 77.2914)
Luminance	0.4461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C1E0 #E05F40

analogous

#40E0AF #40C1E0 #4071E0

triadic

#40C1E0 #E040C1 #C1E040

tetradic

#40C1E0 #AF40E0 #E05F40 #71E040

square

#40C1E0 #AF40E0 #E05F40 #71E040

split-complementary

#40C1E0 #E04071 #E0AF40

monochromatic

#17778E #20A3C3 #40C1E0 #75D2E9 #A9E3F1

Accessibility & contrast

On white

2.12

#40C1E0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.92

#40C1E0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C1E0

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C1E0	#FFFFFF	#000000	##000000
##40C1E0	1.00	2.12	9.92	9.92
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.92	21.00	1.00	1.00
##000000	9.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADBBE2

Deuteranopia (green-blind)

#97ABE0

Tritanopia (blue-blind)

#00CCCB

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #40c1e0;
/* rgb */ color: rgb(64, 193, 224);
/* oklch */ color: oklch(75.4% 0.118 217.4);

Tailwind

colors: {
  custom: {
    50: '#8ad4e9',
    500: '#40c1e0',
    950: '#000000',
  },
}

SCSS

$custom: #40c1e0;
$custom-light: #8ad4e9;
$custom-dark: #000000;

JSON

{
  "hex": "#40c1e0",
  "rgb": {
    "r": 64,
    "g": 193,
    "b": 224
  },
  "hsl": {
    "h": 191.625,
    "s": 72.072,
    "l": 56.471
  },
  "oklch": {
    "l": 0.75411,
    "c": 0.11755,
    "h": 217.4
  },
  "luminance": 0.44612
}

Semantic roles & 50–950 ramp

primary

#40C1E0

secondary

#DFAA9D

accent

#5C39EF

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #40C1E0

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

Preview Lab → · Contrast checker → · Palette generator →