#4FCA99
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.7% 0.132 163.7), rgb(79, 202, 153).
Aa
Black text reads best on this color (10.24:1).
About this color
#4FCA99 is a medium-light, moderately saturated green. In OKLCH its lightness is 76%, its chroma 0.132 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.031 away. Black text reads best on it, at 10.24:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.24:1 |
| White text | 2.05:1 |
Values
| HEX | #4FCA99 |
| RGB | rgb(79, 202, 153) |
| HSL | hsl(156, 54%, 55%) |
| OKLCH | oklch(75.7% 0.132 163.7) |
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 #4FCA99 | 2.05:1 | Fails | Lc -44.2 | Non-text elements, placeholder text |
| Black text on #4FCA99 | 10.24:1 | AAA | Lc 64.3 | Content text, not long reading |
| #4FCA99 text on white | 2.05:1 | Fails | Lc 39.6 | Non-text elements, placeholder text |
| #4FCA99 text on black | 10.24:1 | AAA | Lc -62.7 | 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
#EFF8F3
oklch(97.1% 0.012 162.1)
-
Step 100
100
#DCEFE5
oklch(93.5% 0.024 163.1)
-
Step 200
200
#BFE3D1
oklch(88.5% 0.045 163.7)
-
Step 300
300
#8ED2B2
oklch(80.9% 0.083 163.5)
-
Step 400
400 (this color)
#4FCA99
oklch(75.7% 0.132 163.7)
-
Step 500
500
#00A272
oklch(63% 0.135 163.5)
-
Step 600
600
#008860
oklch(55.5% 0.118 164)
-
Step 700
700
#007350
oklch(49.2% 0.105 163.6)
-
Step 800
800
#005E41
oklch(42.7% 0.091 163.9)
-
Step 900
900
#004F35
oklch(37.8% 0.082 162.9)
-
Step 950
950
#002F1E
oklch(27% 0.058 163)
#4FCA99 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) | #C7BC96 | 0.129 |
| Deuteranopia (no green cones) | #B5B09C | 0.124 |
| Tritanopia (no blue cones) | #00CABC | 0.051 |
| Achromatopsia (no color) | #B5B5B5 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FCA99
#4FCA99
oklch(75.7% 0.132 163.7)
- #EA8DC5
#EA8DC5
oklch(75.7% 0.131 343.8)
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 #4FCA99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.031
- Greenblue #23C48B ΔE 0.034
- Emerald #06D6A0 ΔE 0.036
- Soft Green #6FC276 ΔE 0.044
- Green Blue #01C08D ΔE 0.045
- Dark Mint #48C072 ΔE 0.052
- Seaweed #18D17B ΔE 0.056
- Seafoam Blue #78D1B6 ΔE 0.057
Use #4FCA99 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.