#4FC99D
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.5% 0.127 166), rgb(79, 201, 157).
Aa
Black text reads best on this color (10.17:1).
About this color
#4FC99D is a medium-light, moderately saturated green. In OKLCH its lightness is 76%, its chroma 0.127 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.028 away. Black text reads best on it, at 10.17:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.17:1 |
| White text | 2.06:1 |
Values
| HEX | #4FC99D |
| RGB | rgb(79, 201, 157) |
| HSL | hsl(158, 53%, 55%) |
| OKLCH | oklch(75.5% 0.127 166) |
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 #4FC99D | 2.06:1 | Fails | Lc -44.5 | Non-text elements, placeholder text |
| Black text on #4FC99D | 10.17:1 | AAA | Lc 64.0 | Content text, not long reading |
| #4FC99D text on white | 2.06:1 | Fails | Lc 40.0 | Non-text elements, placeholder text |
| #4FC99D text on black | 10.17:1 | AAA | Lc -62.3 | Content text, not long reading |
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 400.
-
Step 50
50
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DCEFE6
oklch(93.6% 0.023 165.8)
-
Step 200
200
#BFE3D2
oklch(88.5% 0.044 165.2)
-
Step 300
300
#8ED1B5
oklch(80.8% 0.079 166.4)
-
Step 400
400 (this color)
#4FC99D
oklch(75.5% 0.127 166)
-
Step 500
500
#00A277
oklch(63.2% 0.131 166)
-
Step 600
600
#008863
oklch(55.6% 0.116 165.8)
-
Step 700
700
#007253
oklch(49% 0.101 166.2)
-
Step 800
800
#005E44
oklch(42.7% 0.088 166.3)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#002F20
oklch(27.1% 0.056 165.8)
#4FC99D 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) | #C5BC9B | 0.127 |
| Deuteranopia (no green cones) | #B4AFA0 | 0.123 |
| Tritanopia (no blue cones) | #00C9BD | 0.048 |
| Achromatopsia (no color) | #B4B4B4 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FC99D
#4FC99D
oklch(75.5% 0.127 166)
- #E98DC1
#E98DC1
oklch(75.5% 0.128 345.6)
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 #4FC99D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.028
- Greenblue #23C48B ΔE 0.037
- Emerald #06D6A0 ΔE 0.039
- Green Blue #01C08D ΔE 0.045
- Soft Green #6FC276 ΔE 0.048
- Seafoam Blue #78D1B6 ΔE 0.054
- Pale Teal #82CBB2 ΔE 0.056
- Dark Mint #48C072 ΔE 0.057
Use #4FC99D 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.