#4FC99B
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.5% 0.129 165), rgb(79, 201, 155).
Aa
Black text reads best on this color (10.16:1).
About this color
#4FC99B is a medium-light, moderately saturated green. In OKLCH its lightness is 75%, its chroma 0.129 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.030 away. Black text reads best on it, at 10.16:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.16:1 |
| White text | 2.06:1 |
Values
| HEX | #4FC99B |
| RGB | rgb(79, 201, 155) |
| HSL | hsl(157, 53%, 55%) |
| OKLCH | oklch(75.5% 0.129 165) |
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 #4FC99B | 2.06:1 | Fails | Lc -44.6 | Non-text elements, placeholder text |
| Black text on #4FC99B | 10.16:1 | AAA | Lc 63.9 | Content text, not long reading |
| #4FC99B text on white | 2.06:1 | Fails | Lc 40.0 | Non-text elements, placeholder text |
| #4FC99B text on black | 10.16:1 | 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
#8ED2B4
oklch(81% 0.081 165.1)
-
Step 400
400 (this color)
#4FC99B
oklch(75.5% 0.129 165)
-
Step 500
500
#00A275
oklch(63.1% 0.133 165)
-
Step 600
600
#008862
oklch(55.5% 0.117 165.2)
-
Step 700
700
#007352
oklch(49.2% 0.104 164.9)
-
Step 800
800
#005E42
oklch(42.7% 0.09 164.7)
-
Step 900
900
#004E37
oklch(37.6% 0.079 165.5)
-
Step 950
950
#002F1F
oklch(27% 0.057 164.4)
#4FC99B 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) | #C5BC99 | 0.127 |
| Deuteranopia (no green cones) | #B4AF9E | 0.123 |
| Tritanopia (no blue cones) | #00C9BC | 0.049 |
| Achromatopsia (no color) | #B4B4B4 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FC99B
#4FC99B
oklch(75.5% 0.129 165)
- #E98DC2
#E98DC2
oklch(75.5% 0.129 345.1)
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 #4FC99B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.030
- Greenblue #23C48B ΔE 0.035
- Emerald #06D6A0 ΔE 0.038
- Green Blue #01C08D ΔE 0.044
- Soft Green #6FC276 ΔE 0.046
- Dark Mint #48C072 ΔE 0.054
- Seafoam Blue #78D1B6 ΔE 0.056
- Pale Teal #82CBB2 ΔE 0.057
Use #4FC99B 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.