#11B9AC
Closest named color: Topaz (#13BBAF). oklch(70.8% 0.122 185.9), rgb(17, 185, 172).
Aa
Black text reads best on this color (8.55:1).
About this color
#11B9AC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.122 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.006 away. Black text reads best on it, at 8.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.55:1 |
| White text | 2.45:1 |
Values
| HEX | #11B9AC |
| RGB | rgb(17, 185, 172) |
| HSL | hsl(175, 83%, 40%) |
| OKLCH | oklch(70.8% 0.122 185.9) |
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 #11B9AC | 2.45:1 | Fails | Lc -52.7 | Large or bold text, headings |
| Black text on #11B9AC | 8.55:1 | AAA | Lc 56.3 | Large or bold text, headings |
| #11B9AC text on white | 2.45:1 | Fails | Lc 47.7 | Large or bold text, headings |
| #11B9AC text on black | 8.55:1 | AAA | Lc -54.3 | 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 400.
-
Step 50
50
#EEF8F6
oklch(97.1% 0.011 182.9)
-
Step 100
100
#DAEFEC
oklch(93.6% 0.022 186.5)
-
Step 200
200
#BBE3DD
oklch(88.6% 0.042 185.3)
-
Step 300
300
#86D1C8
oklch(80.9% 0.076 186.2)
-
Step 400
400 (this color)
#11B9AC
oklch(70.8% 0.122 185.9)
-
Step 500
500
#009F93
oklch(63.2% 0.111 185.4)
-
Step 600
600
#00857C
oklch(55.5% 0.097 186.5)
-
Step 700
700
#007068
oklch(49.1% 0.086 186.2)
-
Step 800
800
#005C55
oklch(42.7% 0.075 185.9)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#11B9AC 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) | #AFAEAC | 0.130 |
| Deuteranopia (no green cones) | #9B9FAD | 0.123 |
| Tritanopia (no blue cones) | #00BEB5 | 0.016 |
| Achromatopsia (no color) | #A5A5A5 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11B9AC
#11B9AC
oklch(70.8% 0.122 185.9)
- #E07F95
#E07F95
oklch(70.8% 0.122 6.1)
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 #11B9AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.006
- Light Sea Green #20B2AA ΔE 0.020
- Greeny Blue #42B395 ΔE 0.033
- Turquoise Blue #06B1C4 ΔE 0.049
- Green Blue #01C08D ΔE 0.055
- Greenblue #23C48B ΔE 0.065
- Bluey Green #2BB179 ΔE 0.069
- Dark Seafoam #1FB57A ΔE 0.069
Use #11B9AC 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.