#3FA491
Closest named color: Persian Green (#2A9D8F). oklch(65.5% 0.098 178.5), rgb(63, 164, 145).
Aa
Black text reads best on this color (6.93:1).
About this color
#3FA491 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.098 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.026 away. Black text reads best on it, at 6.93:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.93:1 |
| White text | 3.03:1 |
Values
| HEX | #3FA491 |
| RGB | rgb(63, 164, 145) |
| HSL | hsl(169, 44%, 45%) |
| OKLCH | oklch(65.5% 0.098 178.5) |
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 #3FA491 | 3.03:1 | AA large text | Lc -62.2 | Content text, not long reading |
| Black text on #3FA491 | 6.93:1 | AA | Lc 47.3 | Large or bold text, headings |
| #3FA491 text on white | 3.03:1 | AA large text | Lc 56.8 | Large or bold text, headings |
| #3FA491 text on black | 6.93:1 | AA | Lc -45.0 | 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
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C7DFD9
oklch(88.4% 0.027 179)
-
Step 300
300
#A0CBC1
oklch(80.8% 0.048 179.2)
-
Step 400
400
#69B1A1
oklch(70.8% 0.077 178.1)
-
Step 500
500 (this color)
#3FA491
oklch(65.5% 0.098 178.5)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
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
#0D4C42
oklch(37.6% 0.063 179.3)
-
Step 950
950
#0B2D27
oklch(27.1% 0.041 179.3)
#3FA491 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) | #9E9B90 | 0.103 |
| Deuteranopia (no green cones) | #8F9093 | 0.098 |
| Tritanopia (no blue cones) | #00A69E | 0.025 |
| Achromatopsia (no color) | #949494 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA491
#3FA491
oklch(65.5% 0.098 178.5)
- #C17790
#C17790
oklch(65.5% 0.097 358.4)
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 #3FA491, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.026
- Dull Teal #5F9E8F ΔE 0.029
- Grey Teal #5E9B8A ΔE 0.032
- Sea #3C9992 ΔE 0.034
- Blue Green #0F9B8E ΔE 0.037
- Cadet Blue #5F9EA0 ΔE 0.043
- Greeny Blue #42B395 ΔE 0.044
- Light Sea Green #20B2AA ΔE 0.045
Use #3FA491 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.