#40A995
Closest named color: Greeny Blue (#42B395). oklch(66.9% 0.101 178.2), rgb(64, 169, 149).
Aa
Black text reads best on this color (7.32:1).
About this color
#40A995 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.101 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.030 away. Black text reads best on it, at 7.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.32:1 |
| White text | 2.86:1 |
Values
| HEX | #40A995 |
| RGB | rgb(64, 169, 149) |
| HSL | hsl(169, 45%, 46%) |
| OKLCH | oklch(66.9% 0.101 178.2) |
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 #40A995 | 2.86:1 | Fails | Lc -59.9 | Large or bold text, headings |
| Black text on #40A995 | 7.32:1 | AAA | Lc 49.5 | Large or bold text, headings |
| #40A995 text on white | 2.86:1 | Fails | Lc 54.6 | Large or bold text, headings |
| #40A995 text on black | 7.32:1 | AAA | Lc -47.3 | 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
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C7DFD9
oklch(88.4% 0.027 179)
-
Step 300
300
#9FCCC1
oklch(81% 0.05 178.4)
-
Step 400
400
#66B1A1
oklch(70.7% 0.079 178.6)
-
Step 500
500 (this color)
#40A995
oklch(66.9% 0.101 178.2)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#094D42
oklch(37.8% 0.066 178.4)
-
Step 950
950
#0A2D26
oklch(27% 0.042 177.2)
#40A995 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) | #A39F94 | 0.107 |
| Deuteranopia (no green cones) | #939497 | 0.101 |
| Tritanopia (no blue cones) | #00ABA3 | 0.025 |
| Achromatopsia (no color) | #999999 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A995
#40A995
oklch(66.9% 0.101 178.2)
- #C77A94
#C77A94
oklch(66.9% 0.101 358.4)
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 #40A995, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.030
- Light Sea Green #20B2AA ΔE 0.033
- Dull Teal #5F9E8F ΔE 0.036
- Persian Green #2A9D8F ΔE 0.039
- Grey Teal #5E9B8A ΔE 0.041
- Tea #65AB7C ΔE 0.045
- Cadet Blue #5F9EA0 ΔE 0.047
- Sea #3C9992 ΔE 0.048
Use #40A995 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.