#11B59F
Closest named color: Greeny Blue (#42B395). oklch(69.4% 0.124 179.8), rgb(17, 181, 159).
Aa
Black text reads best on this color (8.13:1).
About this color
#11B59F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.124 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.020 away. Black text reads best on it, at 8.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.13:1 |
| White text | 2.58:1 |
Values
| HEX | #11B59F |
| RGB | rgb(17, 181, 159) |
| HSL | hsl(172, 83%, 39%) |
| OKLCH | oklch(69.4% 0.124 179.8) |
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 #11B59F | 2.58:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #11B59F | 8.13:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #11B59F text on white | 2.58:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #11B59F text on black | 8.13:1 | AAA | Lc -52.0 | 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
#DBEFEA
oklch(93.6% 0.022 179.2)
-
Step 200
200
#BCE3DA
oklch(88.5% 0.043 179.7)
-
Step 300
300
#87D1C2
oklch(80.8% 0.077 180)
-
Step 400
400 (this color)
#11B59F
oklch(69.4% 0.124 179.8)
-
Step 500
500
#00A08C
oklch(63.2% 0.115 179.7)
-
Step 600
600
#008675
oklch(55.5% 0.101 179.7)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900
#004D43
oklch(37.7% 0.068 180.3)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#11B59F 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) | #ADA99E | 0.131 |
| Deuteranopia (no green cones) | #999BA1 | 0.124 |
| Tritanopia (no blue cones) | #00B8AE | 0.021 |
| Achromatopsia (no color) | #A1A1A1 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11B59F
#11B59F
oklch(69.4% 0.124 179.8)
- #DA7A9A
#DA7A9A
oklch(69.4% 0.124 359.5)
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 #11B59F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.020
- Light Sea Green #20B2AA ΔE 0.021
- Topaz #13BBAF ΔE 0.025
- Green Blue #01C08D ΔE 0.048
- Bluey Green #2BB179 ΔE 0.051
- Dark Seafoam #1FB57A ΔE 0.052
- Dark Seafoam Green #3EAF76 ΔE 0.054
- Tea #65AB7C ΔE 0.057
Use #11B59F 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.