#6DD5CB
Closest named color: Seafoam Blue (#78D1B6). oklch(80.8% 0.098 187.2), rgb(109, 213, 203).
Aa
Black text reads best on this color (12.03:1).
About this color
#6DD5CB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 81%, its chroma 0.098 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Seafoam Blue (#78D1B6), ΔE 0.028 away. Black text reads best on it, at 12.03:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Seafoam Blue (#78D1B6) |
| Black text | 12.03:1 |
| White text | 1.74:1 |
Values
| HEX | #6DD5CB |
| RGB | rgb(109, 213, 203) |
| HSL | hsl(174, 55%, 63%) |
| OKLCH | oklch(80.8% 0.098 187.2) |
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 #6DD5CB | 1.74:1 | Fails | Lc -35.5 | Non-text elements, placeholder text |
| Black text on #6DD5CB | 12.03:1 | AAA | Lc 72.2 | Content text, not long reading |
| #6DD5CB text on white | 1.74:1 | Fails | Lc 31.6 | Non-text elements, placeholder text |
| #6DD5CB 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
#ECF8F7
oklch(97% 0.013 191)
-
Step 100
100
#D6F0ED
oklch(93.5% 0.028 188.3)
-
Step 200
200
#B1E5DF
oklch(88.4% 0.054 187.5)
-
Step 300
300 (this color)
#6DD5CB
oklch(80.8% 0.098 187.2)
-
Step 400
400
#00B9AE
oklch(70.8% 0.123 187.3)
-
Step 500
500
#009E95
oklch(63% 0.11 187.7)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#6DD5CB 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) | #CCCBCB | 0.105 |
| Deuteranopia (no green cones) | #BABFCC | 0.098 |
| Tritanopia (no blue cones) | #34D9D2 | 0.032 |
| Achromatopsia (no color) | #C4C4C4 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6DD5CB
#6DD5CB
oklch(80.8% 0.098 187.2)
- #F8A6B5
#F8A6B5
oklch(80.9% 0.098 7.5)
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 #6DD5CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seafoam Blue #78D1B6 ΔE 0.028
- Medium Turquoise #48D1CC ΔE 0.029
- Turquoise #40E0D0 ΔE 0.036
- Tiffany Blue #94D2BD ΔE 0.037
- Pale Teal #82CBB2 ΔE 0.037
- Medium Aquamarine #66CDAA ΔE 0.047
- Dark Turquoise #00CED1 ΔE 0.052
- Aqua Blue #02D8E9 ΔE 0.053
Use #6DD5CB 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.