#11AC99
Closest named color: Light Sea Green (#20B2AA). oklch(66.9% 0.118 181.1), rgb(17, 172, 153).
Aa
Black text reads best on this color (7.38:1).
About this color
#11AC99 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.118 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.028 away. Black text reads best on it, at 7.38:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.38:1 |
| White text | 2.84:1 |
Values
| HEX | #11AC99 |
| RGB | rgb(17, 172, 153) |
| HSL | hsl(173, 82%, 37%) |
| OKLCH | oklch(66.9% 0.118 181.1) |
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 #11AC99 | 2.84:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #11AC99 | 7.38:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #11AC99 text on white | 2.84:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #11AC99 text on black | 7.38:1 | AAA | Lc -47.9 | Large or bold text, headings |
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 500.
-
Step 50
50
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEEEA
oklch(93.7% 0.017 178.3)
-
Step 200
200
#C3E0DA
oklch(88.4% 0.032 181.7)
-
Step 300
300
#98CDC3
oklch(80.9% 0.057 181.9)
-
Step 400
400
#56B4A4
oklch(70.8% 0.093 180.9)
-
Step 500
500 (this color)
#11AC99
oklch(66.9% 0.118 181.1)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#11AC99 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) | #A4A198 | 0.125 |
| Deuteranopia (no green cones) | #91949B | 0.118 |
| Tritanopia (no blue cones) | #00AFA6 | 0.018 |
| Achromatopsia (no color) | #999999 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11AC99
#11AC99
oklch(66.9% 0.118 181.1)
- #CF7490
#CF7490
oklch(66.8% 0.118 1.1)
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 #11AC99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.028
- Greeny Blue #42B395 ΔE 0.032
- Persian Green #2A9D8F ΔE 0.042
- Topaz #13BBAF ΔE 0.047
- Blue Green #0F9B8E ΔE 0.049
- Jade #1FA774 ΔE 0.051
- Dull Teal #5F9E8F ΔE 0.052
- Bluey Green #2BB179 ΔE 0.052
Use #11AC99 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.