#2A9166
Closest named color: Viridian (#1E9167). oklch(58.7% 0.115 161.2), rgb(42, 145, 102).
Aa
Black text reads best on this color (5.34:1).
About this color
#2A9166 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.115 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.005 away. Black text reads best on it, at 5.34:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.34:1 |
| White text | 3.93:1 |
Values
| HEX | #2A9166 |
| RGB | rgb(42, 145, 102) |
| HSL | hsl(155, 55%, 37%) |
| OKLCH | oklch(58.7% 0.115 161.2) |
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 #2A9166 | 3.93:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #2A9166 | 5.34:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #2A9166 text on white | 3.93:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #2A9166 text on black | 5.34:1 | AA | Lc -35.3 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#C9DFD3
oklch(88.4% 0.029 162)
-
Step 300
300
#A4CBB6
oklch(80.8% 0.051 161.5)
-
Step 400
400
#70B190
oklch(70.7% 0.083 161.2)
-
Step 500
500
#459D75
oklch(63.1% 0.105 161.4)
-
Step 600
600 (this color)
#2A9166
oklch(58.7% 0.115 161.2)
-
Step 700
700
#08734D
oklch(49.2% 0.107 161.3)
-
Step 800
800
#105D3F
oklch(42.6% 0.087 161.4)
-
Step 900
900
#184D36
oklch(37.8% 0.069 161.4)
-
Step 950
950
#102D1F
oklch(27% 0.044 160.3)
#2A9166 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) | #8F8663 | 0.109 |
| Deuteranopia (no green cones) | #827C69 | 0.108 |
| Tritanopia (no blue cones) | #009185 | 0.046 |
| Achromatopsia (no color) | #808080 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A9166
#2A9166
oklch(58.7% 0.115 161.2)
- #AA5F90
#AA5F90
oklch(58.7% 0.115 341.6)
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 #2A9166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.005
- Sea Green #2E8B57 ΔE 0.023
- Ocean Green #3D9973 ΔE 0.032
- Light Forest Green #4F9153 ΔE 0.033
- Dark Sage #598556 ΔE 0.045
- Fern Green #548D44 ΔE 0.045
- Slate Green #658D6D ΔE 0.055
- Blue Green #0F9B8E ΔE 0.056
Use #2A9166 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.