#4ECA63
Closest named color: Seaweed (#18D17B). oklch(74.6% 0.181 146.6), rgb(78, 202, 99).
Aa
Black text reads best on this color (9.95:1).
About this color
#4ECA63 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.181 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.029 away. Black text reads best on it, at 9.95:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 9.95:1 |
| White text | 2.11:1 |
Values
| HEX | #4ECA63 |
| RGB | rgb(78, 202, 99) |
| HSL | hsl(130, 54%, 55%) |
| OKLCH | oklch(74.6% 0.181 146.6) |
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 #4ECA63 | 2.11:1 | Fails | Lc -45.6 | Large or bold text, headings |
| Black text on #4ECA63 | 9.95:1 | AAA | Lc 63.0 | Content text, not long reading |
| #4ECA63 text on white | 2.11:1 | Fails | Lc 41.0 | Non-text elements, placeholder text |
| #4ECA63 text on black | 9.95:1 | AAA | Lc -61.3 | 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
#EFF8F0
oklch(97% 0.014 148.8)
-
Step 100
100
#DCF0DD
oklch(93.5% 0.033 146.7)
-
Step 200
200
#BFE5C1
oklch(88.5% 0.063 146.4)
-
Step 300
300
#8FD595
oklch(81% 0.114 146.5)
-
Step 400
400 (this color)
#4ECA63
oklch(74.6% 0.181 146.6)
-
Step 500
500
#00A639
oklch(63.1% 0.19 146.6)
-
Step 600
600
#008C2F
oklch(55.7% 0.167 146.6)
-
Step 700
700
#007526
oklch(49% 0.147 146.7)
-
Step 800
800
#00601E
oklch(42.6% 0.127 146.7)
-
Step 900
900
#005017
oklch(37.6% 0.113 146.6)
-
Step 950
950
#00300B
oklch(26.9% 0.08 146.8)
#4ECA63 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) | #CDB95A | 0.141 |
| Deuteranopia (no green cones) | #BDAE6A | 0.140 |
| Tritanopia (no blue cones) | #2FC6B2 | 0.106 |
| Achromatopsia (no color) | #B2B2B2 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ECA63
#4ECA63
oklch(74.6% 0.181 146.6)
- #E67FE8
#E67FE8
oklch(74.6% 0.181 326.5)
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 #4ECA63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.029
- Algae Green #21C36F ΔE 0.035
- Apple #6ECB3C ΔE 0.038
- Dark Mint #48C072 ΔE 0.038
- Dark Mint Green #20C073 ΔE 0.045
- Soft Green #6FC276 ΔE 0.046
- Shamrock Green #02C14D ΔE 0.046
- Lime Green #32CD32 ΔE 0.050
Use #4ECA63 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.