#40A68E
Closest named color: Persian Green (#2A9D8F). oklch(65.9% 0.101 174.7), rgb(64, 166, 142).
Aa
Black text reads best on this color (7.06:1).
About this color
#40A68E is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.101 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.032 away. Black text reads best on it, at 7.06:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 7.06:1 |
| White text | 2.97:1 |
Values
| HEX | #40A68E |
| RGB | rgb(64, 166, 142) |
| HSL | hsl(166, 44%, 45%) |
| OKLCH | oklch(65.9% 0.101 174.7) |
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 #40A68E | 2.97:1 | Fails | Lc -61.4 | Content text, not long reading |
| Black text on #40A68E | 7.06:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #40A68E text on white | 2.97:1 | Fails | Lc 56.0 | Large or bold text, headings |
| #40A68E text on black | 7.06:1 | AAA | Lc -45.7 | 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
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C7DFD8
oklch(88.4% 0.027 176.3)
-
Step 300
300
#A0CCBF
oklch(81% 0.05 175)
-
Step 400
400
#68B19D
oklch(70.7% 0.08 174.4)
-
Step 500
500 (this color)
#40A68E
oklch(65.9% 0.101 174.7)
-
Step 600
600
#00876F
oklch(55.6% 0.106 174.3)
-
Step 700
700
#00715D
oklch(49% 0.093 174.7)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#0C4D3F
oklch(37.7% 0.067 174.1)
-
Step 950
950
#0B2D25
oklch(27% 0.042 174.6)
#40A68E 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) | #A09C8D | 0.105 |
| Deuteranopia (no green cones) | #929190 | 0.102 |
| Tritanopia (no blue cones) | #00A89F | 0.028 |
| Achromatopsia (no color) | #969696 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A68E
#40A68E
oklch(65.9% 0.101 174.7)
- #C37795
#C37795
oklch(65.9% 0.102 355)
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 #40A68E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.032
- Dull Teal #5F9E8F ΔE 0.033
- Grey Teal #5E9B8A ΔE 0.036
- Greeny Blue #42B395 ΔE 0.037
- Sea #3C9992 ΔE 0.042
- Blue Green #0F9B8E ΔE 0.042
- Tea #65AB7C ΔE 0.043
- Light Sea Green #20B2AA ΔE 0.044
Use #40A68E 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.