#40C9D9#40C9D9
#40C9D9 is a light, moderate teal. Relative luminance 0.479; OKLCH L 77.0% C 0.116 H 206.4°. Best body text is #000000 at 10.57:1 contrast (WCAG AA passes).
Color values
| HEX | #40C9D9 |
|---|---|
| RGB | rgb(64, 201, 217) |
| HSL | hsl(186, 67%, 55%) |
| HSV | hsv(186, 71%, 85%) |
| CMYK | cmyk(70.5%, 7.4%, 0%, 14.9%) |
| CIE-LAB | lab(74.74, -30.98, -18.59) |
| CIE-LCH | lch(74.74, 36.13, 210.97°) |
| OKLab | oklab(77.03% -0.1039 -0.0517) |
| OKLCH | oklch(77.03% 0.116 206.4) |
| XYZ | xyz(35.5199, 47.8689, 72.9998) |
| Luminance | 0.4787 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Aqua Blue
#02D8E9
ΔE00 3.94
Darkturquoise
#00CED1
ΔE00 5.56
Turquoise Blue
#06B1C4
ΔE00 6.73
Neon Blue
#04D9FF
ΔE00 7.07
Mediumturquoise
#48D1CC
ΔE00 7.66
Robin'S Egg
#6DEDFD
ΔE00 8.69
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#40C9D9 #D95040
analogous
#40D99D #40C9D9 #407CD9
triadic
#40C9D9 #D940C9 #C9D940
tetradic
#40C9D9 #9D40D9 #D95040 #7CD940
square
#40C9D9 #9D40D9 #D95040 #7CD940
split-complementary
#40C9D9 #D9407C #D99D40
monochromatic
#1A7984 #24A8B7 #40C9D9 #73D7E3 #A6E6ED
Accessibility & contrast
On white
1.99
#40C9D9 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.57
#40C9D9 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #40C9D9
10.57:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##40C9D9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##40C9D9 | 1.00 | 1.99 | 10.57 | 10.57 |
| #FFFFFF | 1.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.57 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.57 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B8C1DA
Deuteranopia (green-blind)
#A2B1D9
Tritanopia (blue-blind)
#00D2CE
Achromatopsia (no color)
#B8B8B8
Design tokens & code
CSS
--color: #40c9d9; /* rgb */ color: rgb(64, 201, 217); /* oklch */ color: oklch(77.0% 0.116 206.4);
Tailwind
colors: {
custom: {
50: '#8adae4',
500: '#40c9d9',
950: '#000000',
},
}SCSS
$custom: #40c9d9; $custom-light: #8adae4; $custom-dark: #000000;
JSON
{
"hex": "#40c9d9",
"rgb": {
"r": 64,
"g": 201,
"b": 217
},
"hsl": {
"h": 186.275,
"s": 66.812,
"l": 55.098
},
"oklch": {
"l": 0.77031,
"c": 0.11608,
"h": 206.4
},
"luminance": 0.47873
}Semantic roles & 50–950 ramp
primary
#40C9D9
secondary
#DAA19A
accent
#503EEA
background
#F9FDFD
surface
#F2FAFB
border
#CCD3D4
text
#0D1515
muted
#7E8383