#42C5DA#42C5DA
#42C5DA is a light, moderate teal. Relative luminance 0.462; OKLCH L 76.2% C 0.114 H 210.4°. Best body text is #000000 at 10.23:1 contrast (WCAG AA passes).
Color values
| HEX | #42C5DA |
|---|---|
| RGB | rgb(66, 197, 218) |
| HSL | hsl(188, 67%, 56%) |
| HSV | hsv(188, 70%, 85%) |
| CMYK | cmyk(69.7%, 9.6%, 0%, 14.5%) |
| CIE-LAB | lab(73.64, -28.48, -20.80) |
| CIE-LCH | lch(73.64, 35.26, 216.14°) |
| OKLab | oklab(76.17% -0.0987 -0.0578) |
| OKLCH | oklch(76.17% 0.114 210.4) |
| XYZ | xyz(34.8625, 46.1487, 73.3863) |
| Luminance | 0.4615 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Aqua Blue
#02D8E9
ΔE00 5.46
Turquoise Blue
#06B1C4
ΔE00 5.92
Neon Blue
#04D9FF
ΔE00 6.41
Darkturquoise
#00CED1
ΔE00 7.58
Bright Sky Blue
#02CCFE
ΔE00 7.87
Sky Blue
#87CEEB
ΔE00 8.38
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#42C5DA #DA5742
analogous
#42DAA3 #42C5DA #4279DA
triadic
#42C5DA #DA42C5 #C5DA42
tetradic
#42C5DA #A342DA #DA5742 #79DA42
square
#42C5DA #A342DA #DA5742 #79DA42
split-complementary
#42C5DA #DA4279 #DAA342
monochromatic
#1A7887 #24A6BA #42C5DA #75D5E4 #A8E4EE
Accessibility & contrast
On white
2.05
#42C5DA on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.23
#42C5DA on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #42C5DA
10.23:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##42C5DA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##42C5DA | 1.00 | 2.05 | 10.23 | 10.23 |
| #FFFFFF | 2.05 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.23 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.23 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B3BEDB
Deuteranopia (green-blind)
#9EAEDA
Tritanopia (blue-blind)
#00CECB
Achromatopsia (no color)
#B5B5B5
Design tokens & code
CSS
--color: #42c5da; /* rgb */ color: rgb(66, 197, 218); /* oklch */ color: oklch(76.2% 0.114 210.4);
Tailwind
colors: {
custom: {
50: '#8ad7e5',
500: '#42c5da',
950: '#000000',
},
}SCSS
$custom: #42c5da; $custom-light: #8ad7e5; $custom-dark: #000000;
JSON
{
"hex": "#42c5da",
"rgb": {
"r": 66,
"g": 197,
"b": 218
},
"hsl": {
"h": 188.289,
"s": 67.257,
"l": 55.686
},
"oklch": {
"l": 0.76167,
"c": 0.11444,
"h": 210.4
},
"luminance": 0.46153
}Semantic roles & 50–950 ramp
primary
#42C5DA
secondary
#DBA59C
accent
#553EEA
background
#F9FDFE
surface
#F2FAFC
border
#CCD3D5
text
#0D1415
muted
#7E8384