#42E6D6
Closest named color: Turquoise (#40E0D0). oklch(83.9% 0.133 185.3), rgb(66, 230, 214).
Aa
Black text reads best on this color (13.52:1).
About this color
#42E6D6 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.133 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.017 away. Black text reads best on it, at 13.52:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 13.52:1 |
| White text | 1.55:1 |
Values
| HEX | #42E6D6 |
| RGB | rgb(66, 230, 214) |
| HSL | hsl(174, 77%, 58%) |
| OKLCH | oklch(83.9% 0.133 185.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #42E6D6 | 1.55:1 | Fails | Lc -28.3 | Dividers and decoration only |
| Black text on #42E6D6 | 13.52:1 | AAA | Lc 78.8 | Fine for body text |
| #42E6D6 text on white | 1.55:1 | Fails | Lc 25.0 | Dividers and decoration only |
| #42E6D6 text on black | 13.52:1 | AAA | Lc -78.1 | Fine for body text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#E9FAF7
oklch(97.2% 0.018 184.3)
-
Step 100
100
#CEF3ED
oklch(93.6% 0.039 184.6)
-
Step 200
200
#A0EAE0
oklch(88.6% 0.075 185.4)
-
Step 300
300 (this color)
#42E6D6
oklch(83.9% 0.133 185.3)
-
Step 400
400
#00B9AB
oklch(70.7% 0.124 185.3)
-
Step 500
500
#009F93
oklch(63.2% 0.111 185.4)
-
Step 600
600
#00857B
oklch(55.5% 0.097 185.6)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C55
oklch(42.7% 0.075 185.9)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#42E6D6 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #DAD9D6 | 0.141 |
| Deuteranopia (no green cones) | #C3C8D8 | 0.134 |
| Tritanopia (no blue cones) | #00EBE1 | 0.019 |
| Achromatopsia (no color) | #CFCFCF | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42E6D6
#42E6D6
oklch(83.9% 0.133 185.3)
- #FFB1C2
#FFB1C2
oklch(83.9% 0.093 5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #42E6D6, closest first.
No curated palette has a color within ΔE 0.04 of #42E6D6.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.017
- Aqua Marine #2EE8BB ΔE 0.042
- Bright Aqua #0BF9EA ΔE 0.050
- Light Teal #90E4C1 ΔE 0.056
- Medium Turquoise #48D1CC ΔE 0.057
- Aqua Blue #02D8E9 ΔE 0.057
- Bright Light Blue #26F7FD ΔE 0.060
- Light Turquoise #7EF4CC ΔE 0.061
Use #42E6D6 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.