#00CDD2
Closest named color: Dark Turquoise (#00CED1). oklch(77% 0.131 197.9), rgb(0, 205, 210).
Aa
Black text reads best on this color (10.66:1).
About this color
#00CDD2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.131 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Turquoise (#00CED1), ΔE 0.004 away. Black text reads best on it, at 10.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Dark Turquoise (#00CED1) |
| Black text | 10.66:1 |
| White text | 1.96:1 |
Values
| HEX | #00CDD2 |
| RGB | rgb(0, 205, 210) |
| HSL | hsl(181, 100%, 41%) |
| OKLCH | oklch(77% 0.131 197.9) |
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 #00CDD2 | 1.96:1 | Fails | Lc -41.6 | Non-text elements, placeholder text |
| Black text on #00CDD2 | 10.66:1 | AAA | Lc 66.6 | Content text, not long reading |
| #00CDD2 text on white | 1.96:1 | Fails | Lc 37.3 | Non-text elements, placeholder text |
| #00CDD2 text on black | 10.66:1 | AAA | Lc -65.2 | 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
#E9F9FA
oklch(97.1% 0.017 201.4)
-
Step 100
100
#CEF2F3
oklch(93.6% 0.037 198.6)
-
Step 200
200
#9FE8EA
oklch(88.4% 0.072 198.1)
-
Step 300
300 (this color)
#00CDD2
oklch(77% 0.131 197.9)
-
Step 400
400
#00B7BB
oklch(70.7% 0.12 197.6)
-
Step 500
500
#009DA1
oklch(63.2% 0.107 198)
-
Step 600
600
#008487
oklch(55.6% 0.095 197.6)
-
Step 700
700
#006F72
oklch(49.2% 0.084 198.1)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#004C4E
oklch(37.8% 0.064 197.8)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#00CDD2 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) | #BDC3D3 | 0.134 |
| Deuteranopia (no green cones) | #A5B1D3 | 0.125 |
| Tritanopia (no blue cones) | #00D5CE | 0.025 |
| Achromatopsia (no color) | #B9B9B9 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00CDD2
#00CDD2
oklch(77% 0.131 197.9)
- #FC9095
#FC9095
oklch(77% 0.131 17.6)
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 #00CDD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Turquoise #00CED1 ΔE 0.004
- Medium Turquoise #48D1CC ΔE 0.026
- Aqua Blue #02D8E9 ΔE 0.039
- Vivid Sky Blue #4CC9F0 ΔE 0.056
- Turquoise #40E0D0 ΔE 0.060
- Topaz #13BBAF ΔE 0.062
- Medium Aquamarine #66CDAA ΔE 0.064
- Bright Sky Blue #02CCFE ΔE 0.066
Use #00CDD2 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.