#5DD9DF
Closest named color: Aqua Blue (#02D8E9). oklch(81.8% 0.11 199.6), rgb(93, 217, 223).
Aa
Black text reads best on this color (12.45:1).
About this color
#5DD9DF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.110 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.033 away. Black text reads best on it, at 12.45:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.45:1 |
| White text | 1.68:1 |
Values
| HEX | #5DD9DF |
| RGB | rgb(93, 217, 223) |
| HSL | hsl(183, 67%, 62%) |
| OKLCH | oklch(81.8% 0.11 199.6) |
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 #5DD9DF | 1.68:1 | Fails | Lc -33.4 | Non-text elements, placeholder text |
| Black text on #5DD9DF | 12.45:1 | AAA | Lc 74.2 | Content text, not long reading |
| #5DD9DF text on white | 1.68:1 | Fails | Lc 29.7 | Dividers and decoration only |
| #5DD9DF text on black | 12.45:1 | AAA | Lc -73.2 | 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
#EBF9F9
oklch(97.2% 0.015 196.9)
-
Step 100
100
#D2F1F2
oklch(93.6% 0.032 199)
-
Step 200
200
#AAE6E9
oklch(88.5% 0.061 200)
-
Step 300
300 (this color)
#5DD9DF
oklch(81.8% 0.11 199.6)
-
Step 400
400
#00B7BE
oklch(70.8% 0.12 199.7)
-
Step 500
500
#009DA3
oklch(63.2% 0.108 199.6)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#5DD9DF 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) | #CBD0E0 | 0.113 |
| Deuteranopia (no green cones) | #B6C1E0 | 0.104 |
| Tritanopia (no blue cones) | #00E0DA | 0.036 |
| Achromatopsia (no color) | #C7C7C7 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5DD9DF
#5DD9DF
oklch(81.8% 0.11 199.6)
- #FFA9A9
#FFA9A9
oklch(81.9% 0.102 19.5)
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 #5DD9DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.033
- Medium Turquoise #48D1CC ΔE 0.036
- Turquoise #40E0D0 ΔE 0.037
- Sky Blue #87CEEB ΔE 0.051
- Dark Turquoise #00CED1 ΔE 0.051
- Seafoam Blue #78D1B6 ΔE 0.055
- Tiffany Blue #94D2BD ΔE 0.058
- Vivid Sky Blue #4CC9F0 ΔE 0.059
Use #5DD9DF 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.