#4ECD74
Closest named color: Seaweed (#18D17B). oklch(75.6% 0.169 150.2), rgb(78, 205, 116).
Aa
Black text reads best on this color (10.30:1).
About this color
#4ECD74 is a medium-light, vivid green. In OKLCH its lightness is 76%, its chroma 0.169 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.021 away. Black text reads best on it, at 10.30:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.30:1 |
| White text | 2.03:1 |
Values
| HEX | #4ECD74 |
| RGB | rgb(78, 205, 116) |
| HSL | hsl(138, 56%, 55%) |
| OKLCH | oklch(75.6% 0.169 150.2) |
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 #4ECD74 | 2.03:1 | Fails | Lc -43.8 | Non-text elements, placeholder text |
| Black text on #4ECD74 | 10.30:1 | AAA | Lc 64.7 | Content text, not long reading |
| #4ECD74 text on white | 2.03:1 | Fails | Lc 39.3 | Non-text elements, placeholder text |
| #4ECD74 text on black | 10.30:1 | AAA | Lc -63.1 | 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
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DCF0DF
oklch(93.6% 0.031 149.8)
-
Step 200
200
#BEE5C5
oklch(88.5% 0.06 150.3)
-
Step 300
300
#8ED49D
oklch(80.9% 0.105 150.3)
-
Step 400
400 (this color)
#4ECD74
oklch(75.6% 0.169 150.2)
-
Step 500
500
#00A54C
oklch(63.1% 0.173 150.1)
-
Step 600
600
#008B3F
oklch(55.7% 0.153 150.2)
-
Step 700
700
#007534
oklch(49.2% 0.135 150.2)
-
Step 800
800
#006029
oklch(42.7% 0.118 150)
-
Step 900
900
#005021
oklch(37.7% 0.104 150)
-
Step 950
950
#003011
oklch(27% 0.074 150)
#4ECD74 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) | #CEBD6D | 0.140 |
| Deuteranopia (no green cones) | #BEB17A | 0.139 |
| Tritanopia (no blue cones) | #24CAB7 | 0.092 |
| Achromatopsia (no color) | #B6B6B6 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ECD74
#4ECD74
oklch(75.6% 0.169 150.2)
- #EB85E2
#EB85E2
oklch(75.7% 0.169 330.4)
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 #4ECD74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.021
- Dark Mint #48C072 ΔE 0.038
- Algae Green #21C36F ΔE 0.038
- Soft Green #6FC276 ΔE 0.039
- Dark Mint Green #20C073 ΔE 0.046
- Greenblue #23C48B ΔE 0.048
- Apple #6ECB3C ΔE 0.051
- Emerald #06D6A0 ΔE 0.052
Use #4ECD74 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.