#4ED289
Closest named color: Seaweed (#18D17B). oklch(77.3% 0.156 155.5), rgb(78, 210, 137).
Aa
Black text reads best on this color (10.90:1).
About this color
#4ED289 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.156 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.030 away. Black text reads best on it, at 10.90:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.90:1 |
| White text | 1.92:1 |
Values
| HEX | #4ED289 |
| RGB | rgb(78, 210, 137) |
| HSL | hsl(147, 59%, 56%) |
| OKLCH | oklch(77.3% 0.156 155.5) |
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 #4ED289 | 1.92:1 | Fails | Lc -40.8 | Non-text elements, placeholder text |
| Black text on #4ED289 | 10.90:1 | AAA | Lc 67.4 | Content text, not long reading |
| #4ED289 text on white | 1.92:1 | Fails | Lc 36.5 | Non-text elements, placeholder text |
| #4ED289 text on black | 10.90:1 | AAA | Lc -66.0 | 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 300.
-
Step 50
50
#EBFAF0
oklch(97.1% 0.021 156.8)
-
Step 100
100
#D3F3DD
oklch(93.5% 0.045 155.4)
-
Step 200
200
#ABEBC1
oklch(88.6% 0.087 155.5)
-
Step 300
300 (this color)
#4ED289
oklch(77.3% 0.156 155.5)
-
Step 400
400
#00BF70
oklch(70.7% 0.173 155.6)
-
Step 500
500
#00A45F
oklch(63.2% 0.155 155.5)
-
Step 600
600
#008A4F
oklch(55.7% 0.136 155.4)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#003018
oklch(27.2% 0.067 155.5)
#4ED289 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) | #D1C284 | 0.140 |
| Deuteranopia (no green cones) | #C0B68E | 0.137 |
| Tritanopia (no blue cones) | #05D0BF | 0.076 |
| Achromatopsia (no color) | #BBBBBB | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ED289
#4ED289
oklch(77.3% 0.156 155.5)
- #F28CDC
#F28CDC
oklch(77.4% 0.157 335.5)
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 #4ED289, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.030
- Emerald #06D6A0 ΔE 0.031
- Aqua Green #12E193 ΔE 0.041
- Soft Green #6FC276 ΔE 0.045
- Greenblue #23C48B ΔE 0.049
- Dark Mint #48C072 ΔE 0.053
- Medium Aquamarine #66CDAA ΔE 0.056
- Algae Green #21C36F ΔE 0.056
Use #4ED289 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.