#6DD3BC
Closest named color: Seafoam Blue (#78D1B6). oklch(79.9% 0.102 177), rgb(109, 211, 188).
Aa
Black text reads best on this color (11.69:1).
About this color
#6DD3BC is a light, moderately saturated teal or cyan. In OKLCH its lightness is 80%, its chroma 0.102 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Seafoam Blue (#78D1B6), ΔE 0.011 away. Black text reads best on it, at 11.69:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Seafoam Blue (#78D1B6) |
| Black text | 11.69:1 |
| White text | 1.79:1 |
Values
| HEX | #6DD3BC |
| RGB | rgb(109, 211, 188) |
| HSL | hsl(166, 54%, 63%) |
| OKLCH | oklch(79.9% 0.102 177) |
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 #6DD3BC | 1.79:1 | Fails | Lc -37.1 | Non-text elements, placeholder text |
| Black text on #6DD3BC | 11.69:1 | AAA | Lc 70.8 | Content text, not long reading |
| #6DD3BC text on white | 1.79:1 | Fails | Lc 33.1 | Non-text elements, placeholder text |
| #6DD3BC text on black | 11.69:1 | AAA | Lc -69.6 | 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
#ECF9F5
oklch(97.1% 0.015 175.7)
-
Step 100
100
#D6F1E9
oklch(93.6% 0.03 175.9)
-
Step 200
200
#B2E6D8
oklch(88.5% 0.057 176.6)
-
Step 300
300 (this color)
#6DD3BC
oklch(79.9% 0.102 177)
-
Step 400
400
#00BB9F
oklch(70.8% 0.132 176.8)
-
Step 500
500
#00A088
oklch(63.1% 0.117 177)
-
Step 600
600
#008772
oklch(55.7% 0.104 176.6)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4E
oklch(42.8% 0.079 176.7)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#6DD3BC 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) | #CCC8BB | 0.107 |
| Deuteranopia (no green cones) | #BCBCBE | 0.103 |
| Tritanopia (no blue cones) | #41D5CC | 0.031 |
| Achromatopsia (no color) | #C1C1C1 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6DD3BC
#6DD3BC
oklch(79.9% 0.102 177)
- #F3A2BE
#F3A2BE
oklch(79.9% 0.102 357.3)
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 #6DD3BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seafoam Blue #78D1B6 ΔE 0.011
- Pale Teal #82CBB2 ΔE 0.026
- Medium Aquamarine #66CDAA ΔE 0.028
- Medium Turquoise #48D1CC ΔE 0.033
- Tiffany Blue #94D2BD ΔE 0.037
- Turquoise #40E0D0 ΔE 0.041
- Dark Turquoise #00CED1 ΔE 0.056
- Light Teal #90E4C1 ΔE 0.060
Use #6DD3BC 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.