#40C9E1#40C9E1

#40C9E1 is a light, moderate teal. Relative luminance 0.483; OKLCH L 77.3% C 0.119 H 211.9°. Best body text is #000000 at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#40C9E1
RGB	rgb(64, 201, 225)
HSL	hsl(189, 73%, 57%)
HSV	hsv(189, 72%, 88%)
CMYK	cmyk(71.6%, 10.7%, 0%, 11.8%)
CIE-LAB	lab(75.01, -28.57, -22.51)
CIE-LCH	lch(75.01, 36.37, 218.23°)
OKLab	oklab(77.34% -0.1007 -0.0627)
OKLCH	oklch(77.34% 0.119 211.9)
XYZ	xyz(36.5858, 48.2952, 78.6133)
Luminance	0.4830 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C9E1 #E15840

analogous

#40E1A9 #40C9E1 #4079E1

triadic

#40C9E1 #E140C9 #C9E140

tetradic

#40C9E1 #A940E1 #E15840 #79E140

square

#40C9E1 #A940E1 #E15840 #79E140

split-complementary

#40C9E1 #E14079 #E1A940

monochromatic

#177E90 #1FACC5 #40C9E1 #75D8E9 #AAE7F2

Accessibility & contrast

On white

1.97

#40C9E1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.66

#40C9E1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C9E1

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C9E1	#FFFFFF	#000000	##000000
##40C9E1	1.00	1.97	10.66	10.66
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.66	21.00	1.00	1.00
##000000	10.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C2E2

Deuteranopia (green-blind)

#A0B2E1

Tritanopia (blue-blind)

#00D3D0

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #40c9e1;
/* rgb */ color: rgb(64, 201, 225);
/* oklch */ color: oklch(77.3% 0.119 211.9);

Tailwind

colors: {
  custom: {
    50: '#8bd9ea',
    500: '#40c9e1',
    950: '#000000',
  },
}

SCSS

$custom: #40c9e1;
$custom-light: #8bd9ea;
$custom-dark: #000000;

JSON

{
  "hex": "#40c9e1",
  "rgb": {
    "r": 64,
    "g": 201,
    "b": 225
  },
  "hsl": {
    "h": 188.944,
    "s": 72.851,
    "l": 56.667
  },
  "oklch": {
    "l": 0.77337,
    "c": 0.11863,
    "h": 211.9
  },
  "luminance": 0.483
}

Semantic roles & 50–950 ramp

primary

#40C9E1

secondary

#DFA79D

accent

#5438F0

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #40C9E1

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

Preview Lab → · Contrast checker → · Palette generator →