#40C9D3#40C9D3
#40C9D3 is a light, moderate teal. Relative luminance 0.476; OKLCH L 76.8% C 0.115 H 202.2°. Best body text is #000000 at 10.51:1 contrast (WCAG AA passes).
Color values
| HEX | #40C9D3 |
|---|---|
| RGB | rgb(64, 201, 211) |
| HSL | hsl(184, 63%, 54%) |
| HSV | hsv(184, 70%, 83%) |
| CMYK | cmyk(69.7%, 4.7%, 0%, 17.3%) |
| CIE-LAB | lab(74.55, -32.75, -15.64) |
| CIE-LCH | lch(74.55, 36.30, 205.53°) |
| OKLab | oklab(76.81% -0.1064 -0.0434) |
| OKLCH | oklch(76.81% 0.115 202.2) |
| XYZ | xyz(34.7537, 47.5624, 68.9642) |
| Luminance | 0.4757 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Darkturquoise
#00CED1
ΔE00 3.66
Aqua Blue
#02D8E9
ΔE00 4.20
Mediumturquoise
#48D1CC
ΔE00 5.65
Turquoise Blue
#06B1C4
ΔE00 7.23
Neon Blue
#04D9FF
ΔE00 8.89
Robin'S Egg
#6DEDFD
ΔE00 9.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#40C9D3 #D34A40
analogous
#40D394 #40C9D3 #4080D3
triadic
#40C9D3 #D340C9 #C9D340
tetradic
#40C9D3 #9440D3 #D34A40 #80D340
square
#40C9D3 #9440D3 #D34A40 #80D340
split-complementary
#40C9D3 #D34080 #D39440
monochromatic
#1D767C #28A5AE #40C9D3 #72D7DE #A3E5EA
Accessibility & contrast
On white
2.00
#40C9D3 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.51
#40C9D3 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #40C9D3
10.51:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##40C9D3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##40C9D3 | 1.00 | 2.00 | 10.51 | 10.51 |
| #FFFFFF | 2.00 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.51 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.51 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#BAC0D4
Deuteranopia (green-blind)
#A4B1D4
Tritanopia (blue-blind)
#00D1CC
Achromatopsia (no color)
#B7B7B7
Design tokens & code
CSS
--color: #40c9d3; /* rgb */ color: rgb(64, 201, 211); /* oklch */ color: oklch(76.8% 0.115 202.2);
Tailwind
colors: {
custom: {
50: '#89dae0',
500: '#40c9d3',
950: '#000000',
},
}SCSS
$custom: #40c9d3; $custom-light: #89dae0; $custom-dark: #000000;
JSON
{
"hex": "#40c9d3",
"rgb": {
"r": 64,
"g": 201,
"b": 211
},
"hsl": {
"h": 184.082,
"s": 62.553,
"l": 53.922
},
"oklch": {
"l": 0.7681,
"c": 0.11494,
"h": 202.2
},
"luminance": 0.47566
}Semantic roles & 50–950 ramp
primary
#40C9D3
secondary
#D79C98
accent
#4D42E6
background
#F9FDFD
surface
#F1FAFB
border
#CBD3D4
text
#0D1515
muted
#7E8383