#55DCD1
Closest named color: Turquoise (#40E0D0). oklch(81.8% 0.118 187.6), rgb(85, 220, 209).
Aa
Black text reads best on this color (12.54:1).
About this color
#55DCD1 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.118 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.015 away. Black text reads best on it, at 12.54:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 12.54:1 |
| White text | 1.67:1 |
Values
| HEX | #55DCD1 |
| RGB | rgb(85, 220, 209) |
| HSL | hsl(175, 66%, 60%) |
| OKLCH | oklch(81.8% 0.118 187.6) |
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 #55DCD1 | 1.67:1 | Fails | Lc -32.9 | Non-text elements, placeholder text |
| Black text on #55DCD1 | 12.54:1 | AAA | Lc 74.6 | Content text, not long reading |
| #55DCD1 text on white | 1.67:1 | Fails | Lc 29.2 | Dividers and decoration only |
| #55DCD1 text on black | 12.54:1 | AAA | Lc -73.6 | 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
#EAF9F7
oklch(97% 0.016 187.3)
-
Step 100
100
#D1F2EE
oklch(93.6% 0.035 187.7)
-
Step 200
200
#A7E8E1
oklch(88.5% 0.066 187.7)
-
Step 300
300 (this color)
#55DCD1
oklch(81.8% 0.118 187.6)
-
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
#004D48
oklch(37.8% 0.066 187.3)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#55DCD1 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) | #D1D1D1 | 0.125 |
| Deuteranopia (no green cones) | #BCC2D2 | 0.117 |
| Tritanopia (no blue cones) | #00E1D8 | 0.025 |
| Achromatopsia (no color) | #C8C8C8 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55DCD1
#55DCD1
oklch(81.8% 0.118 187.6)
- #FFA7B7
#FFA7B7
oklch(81.9% 0.105 7.8)
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 #55DCD1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.015
- Medium Turquoise #48D1CC ΔE 0.032
- Seafoam Blue #78D1B6 ΔE 0.042
- Aqua Blue #02D8E9 ΔE 0.045
- Dark Turquoise #00CED1 ΔE 0.052
- Tiffany Blue #94D2BD ΔE 0.054
- Aqua Marine #2EE8BB ΔE 0.055
- Pale Teal #82CBB2 ΔE 0.056
Use #55DCD1 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.