#40A185
Closest named color: Persian Green (#2A9D8F). oklch(64.4% 0.101 171), rgb(64, 161, 133).
Aa
Black text reads best on this color (6.65:1).
About this color
#40A185 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.101 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.025 away. Black text reads best on it, at 6.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.65:1 |
| White text | 3.15:1 |
Values
| HEX | #40A185 |
| RGB | rgb(64, 161, 133) |
| HSL | hsl(163, 43%, 44%) |
| OKLCH | oklch(64.4% 0.101 171) |
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 #40A185 | 3.15:1 | AA large text | Lc -63.8 | Content text, not long reading |
| Black text on #40A185 | 6.65:1 | AA | Lc 45.7 | Large or bold text, headings |
| #40A185 text on white | 3.15:1 | AA large text | Lc 58.4 | Large or bold text, headings |
| #40A185 text on black | 6.65:1 | AA | Lc -43.3 | 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 500.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C8DFD7
oklch(88.4% 0.027 172.8)
-
Step 300
300
#A1CBBC
oklch(80.8% 0.049 171.2)
-
Step 400
400
#6BB19A
oklch(70.7% 0.079 171)
-
Step 500
500 (this color)
#40A185
oklch(64.4% 0.101 171)
-
Step 600
600
#00876B
oklch(55.5% 0.108 171.4)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#114D3D
oklch(37.8% 0.066 170.9)
-
Step 950
950
#0D2D24
oklch(27% 0.041 171.7)
#40A185 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) | #9D9784 | 0.104 |
| Deuteranopia (no green cones) | #8E8D87 | 0.098 |
| Tritanopia (no blue cones) | #00A299 | 0.033 |
| Achromatopsia (no color) | #919191 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A185
#40A185
oklch(64.4% 0.101 171)
- #BC7395
#BC7395
oklch(64.4% 0.101 350.9)
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 #40A185, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.025
- Ocean Green #3D9973 ΔE 0.030
- Grey Teal #5E9B8A ΔE 0.032
- Dull Teal #5F9E8F ΔE 0.034
- Blue Green #0F9B8E ΔE 0.034
- Sea #3C9992 ΔE 0.036
- Jade #1FA774 ΔE 0.039
- Tea #65AB7C ΔE 0.049
Use #40A185 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.