#40AA8D
Closest named color: Greeny Blue (#42B395). oklch(66.9% 0.107 171.7), rgb(64, 170, 141).
Aa
Black text reads best on this color (7.35:1).
About this color
#40AA8D is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.107 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.026 away. Black text reads best on it, at 7.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.35:1 |
| White text | 2.85:1 |
Values
| HEX | #40AA8D |
| RGB | rgb(64, 170, 141) |
| HSL | hsl(164, 45%, 46%) |
| OKLCH | oklch(66.9% 0.107 171.7) |
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 #40AA8D | 2.85:1 | Fails | Lc -59.7 | Large or bold text, headings |
| Black text on #40AA8D | 7.35:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #40AA8D text on white | 2.85:1 | Fails | Lc 54.4 | Large or bold text, headings |
| #40AA8D text on black | 7.35:1 | AAA | Lc -47.4 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDE8
oklch(93.5% 0.015 171)
-
Step 200
200
#C7E0D7
oklch(88.6% 0.029 172)
-
Step 300
300
#9FCCBC
oklch(80.9% 0.052 171.2)
-
Step 400
400
#66B29A
oklch(70.7% 0.084 171.4)
-
Step 500
500 (this color)
#40AA8D
oklch(66.9% 0.107 171.7)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#084D3D
oklch(37.6% 0.069 172)
-
Step 950
950
#0A2D24
oklch(26.9% 0.043 172.7)
#40AA8D 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) | #A59F8C | 0.110 |
| Deuteranopia (no green cones) | #96948F | 0.106 |
| Tritanopia (no blue cones) | #00ABA2 | 0.033 |
| Achromatopsia (no color) | #999999 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AA8D
#40AA8D
oklch(66.9% 0.107 171.7)
- #C7799C
#C7799C
oklch(67% 0.106 351.9)
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 #40AA8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.026
- Tea #65AB7C ΔE 0.036
- Dark Seafoam Green #3EAF76 ΔE 0.040
- Light Sea Green #20B2AA ΔE 0.041
- Jade #1FA774 ΔE 0.041
- Dull Teal #5F9E8F ΔE 0.042
- Bluey Green #2BB179 ΔE 0.042
- Persian Green #2A9D8F ΔE 0.044
Use #40AA8D 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.