#6DD3DF
Closest named color: Sky Blue (#87CEEB). oklch(81% 0.096 205.5), rgb(109, 211, 223).
Aa
Black text reads best on this color (12.03:1).
About this color
#6DD3DF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 81%, its chroma 0.096 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.035 away. Black text reads best on it, at 12.03:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.03:1 |
| White text | 1.74:1 |
Values
| HEX | #6DD3DF |
| RGB | rgb(109, 211, 223) |
| HSL | hsl(186, 64%, 65%) |
| OKLCH | oklch(81% 0.096 205.5) |
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 #6DD3DF | 1.74:1 | Fails | Lc -35.5 | Non-text elements, placeholder text |
| Black text on #6DD3DF | 12.03:1 | AAA | Lc 72.3 | Content text, not long reading |
| #6DD3DF text on white | 1.74:1 | Fails | Lc 31.6 | Non-text elements, placeholder text |
| #6DD3DF text on black | 12.03:1 | AAA | Lc -71.1 | 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
#ECF8FA
oklch(97.1% 0.013 208.8)
-
Step 100
100
#D5F0F3
oklch(93.6% 0.029 204.8)
-
Step 200
200
#B0E4EA
oklch(88.5% 0.054 205)
-
Step 300
300 (this color)
#6DD3DF
oklch(81% 0.096 205.5)
-
Step 400
400
#00B5C5
oklch(70.6% 0.121 206)
-
Step 500
500
#009CA9
oklch(63.2% 0.108 205.2)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#6DD3DF 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) | #C5CCE0 | 0.095 |
| Deuteranopia (no green cones) | #B3BEDF | 0.088 |
| Tritanopia (no blue cones) | #1ADAD6 | 0.047 |
| Achromatopsia (no color) | #C4C4C4 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6DD3DF
#6DD3DF
oklch(81% 0.096 205.5)
- #F9A9A1
#F9A9A1
oklch(81% 0.096 25.7)
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 #6DD3DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.035
- Medium Turquoise #48D1CC ΔE 0.040
- Aqua Blue #02D8E9 ΔE 0.041
- Vivid Sky Blue #4CC9F0 ΔE 0.049
- Light Sky Blue #87CEFA ΔE 0.052
- Lightblue #7BC8F6 ΔE 0.053
- Turquoise #40E0D0 ΔE 0.054
- Dark Turquoise #00CED1 ΔE 0.055
Use #6DD3DF 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.