#3FA978
Closest named color: Jade (#1FA774). oklch(66.1% 0.123 160), rgb(63, 169, 120).
Aa
Black text reads best on this color (7.15:1).
About this color
#3FA978 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.123 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.019 away. Black text reads best on it, at 7.15:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 7.15:1 |
| White text | 2.93:1 |
Values
| HEX | #3FA978 |
| RGB | rgb(63, 169, 120) |
| HSL | hsl(152, 46%, 45%) |
| OKLCH | oklch(66.1% 0.123 160) |
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 #3FA978 | 2.93:1 | Fails | Lc -60.8 | Content text, not long reading |
| Black text on #3FA978 | 7.15:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #3FA978 text on white | 2.93:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #3FA978 text on black | 7.15:1 | AAA | Lc -46.3 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EEE6
oklch(93.7% 0.017 159.1)
-
Step 200
200
#C7E0D2
oklch(88.4% 0.033 161.2)
-
Step 300
300
#A0CDB3
oklch(80.9% 0.06 159.4)
-
Step 400
400
#67B38C
oklch(70.6% 0.096 160.2)
-
Step 500
500 (this color)
#3FA978
oklch(66.1% 0.123 160)
-
Step 600
600
#008959
oklch(55.6% 0.126 160)
-
Step 700
700
#00734A
oklch(49% 0.111 160)
-
Step 800
800
#005F3C
oklch(42.8% 0.097 159.8)
-
Step 900
900
#0B4E32
oklch(37.6% 0.08 159.6)
-
Step 950
950
#0B2E1E
oklch(27.1% 0.05 160.2)
#3FA978 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) | #A79D75 | 0.115 |
| Deuteranopia (no green cones) | #99937B | 0.112 |
| Tritanopia (no blue cones) | #00A89C | 0.054 |
| Achromatopsia (no color) | #979797 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA978
#3FA978
oklch(66.1% 0.123 160)
- #C473AA
#C473AA
oklch(66.1% 0.123 340.1)
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 #3FA978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.019
- Dark Seafoam Green #3EAF76 ΔE 0.019
- Bluey Green #2BB179 ΔE 0.024
- Seaweed Green #35AD6B ΔE 0.025
- Algae #54AC68 ΔE 0.028
- Jade Green #2BAF6A ΔE 0.032
- Tea #65AB7C ΔE 0.034
- Medium Sea Green #3CB371 ΔE 0.034
Use #3FA978 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.