#09AC91
Closest named color: Greeny Blue (#42B395). oklch(66.6% 0.123 176), rgb(9, 172, 145).
Aa
Black text reads best on this color (7.32:1).
About this color
#09AC91 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.123 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.032 away. Black text reads best on it, at 7.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.32:1 |
| White text | 2.86:1 |
Values
| HEX | #09AC91 |
| RGB | rgb(9, 172, 145) |
| HSL | hsl(170, 90%, 35%) |
| OKLCH | oklch(66.6% 0.123 176) |
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 #09AC91 | 2.86:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #09AC91 | 7.32:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #09AC91 text on white | 2.86:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #09AC91 text on black | 7.32:1 | AAA | Lc -47.5 | 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
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DFEEE9
oklch(93.7% 0.017 174)
-
Step 200
200
#C3E1D8
oklch(88.5% 0.034 175.5)
-
Step 300
300
#97CEBF
oklch(80.9% 0.061 176)
-
Step 400
400
#55B49E
oklch(70.6% 0.096 176.1)
-
Step 500
500 (this color)
#09AC91
oklch(66.6% 0.123 176)
-
Step 600
600
#008771
oklch(55.7% 0.104 175.8)
-
Step 700
700
#00715F
oklch(49% 0.091 176.5)
-
Step 800
800
#005D4D
oklch(42.7% 0.08 175.6)
-
Step 900
900
#004D40
oklch(37.6% 0.07 176.4)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#09AC91 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) | #A5A090 | 0.129 |
| Deuteranopia (no green cones) | #939393 | 0.123 |
| Tritanopia (no blue cones) | #00AEA4 | 0.027 |
| Achromatopsia (no color) | #989898 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09AC91
#09AC91
oklch(66.6% 0.123 176)
- #CF7296
#CF7296
oklch(66.6% 0.123 356.4)
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 #09AC91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.032
- Light Sea Green #20B2AA ΔE 0.038
- Jade #1FA774 ΔE 0.039
- Bluey Green #2BB179 ΔE 0.041
- Dark Seafoam Green #3EAF76 ΔE 0.043
- Persian Green #2A9D8F ΔE 0.044
- Dark Seafoam #1FB57A ΔE 0.048
- Blue Green #0F9B8E ΔE 0.050
Use #09AC91 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.