#40A98F
Closest named color: Greeny Blue (#42B395). oklch(66.7% 0.104 173.7), rgb(64, 169, 143).
Aa
Black text reads best on this color (7.28:1).
About this color
#40A98F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.104 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.029 away. Black text reads best on it, at 7.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.28:1 |
| White text | 2.88:1 |
Values
| HEX | #40A98F |
| RGB | rgb(64, 169, 143) |
| HSL | hsl(165, 45%, 46%) |
| OKLCH | oklch(66.7% 0.104 173.7) |
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 #40A98F | 2.88:1 | Fails | Lc -60.1 | Content text, not long reading |
| Black text on #40A98F | 7.28:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #40A98F text on white | 2.88:1 | Fails | Lc 54.8 | Large or bold text, headings |
| #40A98F text on black | 7.28:1 | AAA | Lc -47.0 | 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
#E0EDE9
oklch(93.5% 0.015 175.7)
-
Step 200
200
#C7E0D7
oklch(88.6% 0.029 172)
-
Step 300
300
#9FCCBE
oklch(80.9% 0.051 174)
-
Step 400
400
#67B19C
oklch(70.6% 0.081 173.7)
-
Step 500
500 (this color)
#40A98F
oklch(66.7% 0.104 173.7)
-
Step 600
600
#00876E
oklch(55.6% 0.106 173.6)
-
Step 700
700
#00725C
oklch(49.2% 0.094 173.1)
-
Step 800
800
#005D4B
oklch(42.7% 0.081 173.5)
-
Step 900
900
#094D3F
oklch(37.7% 0.068 174.4)
-
Step 950
950
#0A2D25
oklch(26.9% 0.043 174.9)
#40A98F 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) | #A49F8E | 0.109 |
| Deuteranopia (no green cones) | #949491 | 0.103 |
| Tritanopia (no blue cones) | #00ABA1 | 0.029 |
| Achromatopsia (no color) | #989898 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A98F
#40A98F
oklch(66.7% 0.104 173.7)
- #C67999
#C67999
oklch(66.7% 0.104 353.8)
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 #40A98F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.029
- Dull Teal #5F9E8F ΔE 0.038
- Tea #65AB7C ΔE 0.039
- Light Sea Green #20B2AA ΔE 0.039
- Persian Green #2A9D8F ΔE 0.040
- Grey Teal #5E9B8A ΔE 0.043
- Jade #1FA774 ΔE 0.044
- Dark Seafoam Green #3EAF76 ΔE 0.045
Use #40A98F 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.