#27D5DA
Closest named color: Aqua Blue (#02D8E9). oklch(79.5% 0.129 198), rgb(39, 213, 218).
Aa
Black text reads best on this color (11.61:1).
About this color
#27D5DA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 80%, its chroma 0.129 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.020 away. Black text reads best on it, at 11.61:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 11.61:1 |
| White text | 1.80:1 |
Values
| HEX | #27D5DA |
| RGB | rgb(39, 213, 218) |
| HSL | hsl(182, 71%, 50%) |
| OKLCH | oklch(79.5% 0.129 198) |
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 #27D5DA | 1.80:1 | Fails | Lc -37.1 | Non-text elements, placeholder text |
| Black text on #27D5DA | 11.61:1 | AAA | Lc 70.8 | Content text, not long reading |
| #27D5DA text on white | 1.80:1 | Fails | Lc 33.1 | Non-text elements, placeholder text |
| #27D5DA text on black | 11.61:1 | AAA | Lc -69.5 | Content text, not long reading |
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
#E9F9FA
oklch(97.1% 0.017 201.4)
-
Step 100
100
#CEF2F3
oklch(93.6% 0.037 198.6)
-
Step 200
200
#A0E8EA
oklch(88.4% 0.071 198.1)
-
Step 300
300 (this color)
#27D5DA
oklch(79.5% 0.129 198)
-
Step 400
400
#00B7BC
oklch(70.8% 0.12 198.3)
-
Step 500
500
#009DA1
oklch(63.2% 0.107 198)
-
Step 600
600
#008487
oklch(55.6% 0.095 197.6)
-
Step 700
700
#006F72
oklch(49.2% 0.084 198.1)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#004C4E
oklch(37.8% 0.064 197.8)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#27D5DA 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) | #C5CBDB | 0.133 |
| Deuteranopia (no green cones) | #ADB9DB | 0.124 |
| Tritanopia (no blue cones) | #00DDD6 | 0.025 |
| Achromatopsia (no color) | #C1C1C1 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27D5DA
#27D5DA
oklch(79.5% 0.129 198)
- #FF9C9F
#FF9C9F
oklch(79.5% 0.119 18.1)
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 #27D5DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.020
- Medium Turquoise #48D1CC ΔE 0.021
- Dark Turquoise #00CED1 ΔE 0.023
- Turquoise #40E0D0 ΔE 0.040
- Vivid Sky Blue #4CC9F0 ΔE 0.055
- Seafoam Blue #78D1B6 ΔE 0.060
- Bright Sky Blue #02CCFE ΔE 0.065
- Medium Aquamarine #66CDAA ΔE 0.066
Use #27D5DA 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.