#11C3CD
Closest named color: Dark Turquoise (#00CED1). oklch(74.4% 0.125 201.5), rgb(17, 195, 205).
Aa
Black text reads best on this color (9.71:1).
About this color
#11C3CD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.125 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Turquoise (#00CED1), ΔE 0.030 away. Black text reads best on it, at 9.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Dark Turquoise (#00CED1) |
| Black text | 9.71:1 |
| White text | 2.16:1 |
Values
| HEX | #11C3CD |
| RGB | rgb(17, 195, 205) |
| HSL | hsl(183, 85%, 44%) |
| OKLCH | oklch(74.4% 0.125 201.5) |
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 #11C3CD | 2.16:1 | Fails | Lc -46.6 | Large or bold text, headings |
| Black text on #11C3CD | 9.71:1 | AAA | Lc 62.1 | Content text, not long reading |
| #11C3CD text on white | 2.16:1 | Fails | Lc 41.9 | Non-text elements, placeholder text |
| #11C3CD text on black | 9.71:1 | AAA | Lc -60.3 | 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 400.
-
Step 50
50
#EEF8F8
oklch(97.2% 0.011 197)
-
Step 100
100
#D9EFF0
oklch(93.6% 0.023 200.1)
-
Step 200
200
#B9E2E5
oklch(88.5% 0.043 201.9)
-
Step 300
300
#81D0D6
oklch(80.9% 0.078 201.9)
-
Step 400
400 (this color)
#11C3CD
oklch(74.4% 0.125 201.5)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#11C3CD 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) | #B3BACE | 0.126 |
| Deuteranopia (no green cones) | #9CA9CE | 0.117 |
| Tritanopia (no blue cones) | #00CBC6 | 0.028 |
| Achromatopsia (no color) | #B0B0B0 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11C3CD
#11C3CD
oklch(74.4% 0.125 201.5)
- #F18B89
#F18B89
oklch(74.5% 0.125 21.7)
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 #11C3CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Turquoise #00CED1 ΔE 0.030
- Topaz #13BBAF ΔE 0.044
- Medium Turquoise #48D1CC ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.051
- Vivid Sky Blue #4CC9F0 ΔE 0.059
- Light Sea Green #20B2AA ΔE 0.060
- Aqua Blue #02D8E9 ΔE 0.062
- Bright Sky Blue #02CCFE ΔE 0.070
Use #11C3CD 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.