#5AD181
Closest named color: Seaweed (#18D17B). oklch(77.3% 0.157 151.7), rgb(90, 209, 129).
Aa
Black text reads best on this color (10.87:1).
About this color
#5AD181 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.157 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.031 away. Black text reads best on it, at 10.87:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.87:1 |
| White text | 1.93:1 |
Values
| HEX | #5AD181 |
| RGB | rgb(90, 209, 129) |
| HSL | hsl(140, 56%, 59%) |
| OKLCH | oklch(77.3% 0.157 151.7) |
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 #5AD181 | 1.93:1 | Fails | Lc -41.0 | Non-text elements, placeholder text |
| Black text on #5AD181 | 10.87:1 | AAA | Lc 67.2 | Content text, not long reading |
| #5AD181 text on white | 1.93:1 | Fails | Lc 36.7 | Non-text elements, placeholder text |
| #5AD181 text on black | 10.87:1 | AAA | Lc -65.8 | 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
#ECFAEF
oklch(97.2% 0.021 152.2)
-
Step 100
100
#D5F3DB
oklch(93.6% 0.045 151.3)
-
Step 200
200
#AEEABD
oklch(88.4% 0.087 152.1)
-
Step 300
300 (this color)
#5AD181
oklch(77.3% 0.157 151.7)
-
Step 400
400
#00C061
oklch(70.7% 0.187 151.7)
-
Step 500
500
#00A552
oklch(63.2% 0.168 151.6)
-
Step 600
600
#008A44
oklch(55.5% 0.147 151.7)
-
Step 700
700
#007538
oklch(49.2% 0.131 151.5)
-
Step 800
800
#00602D
oklch(42.8% 0.114 151.6)
-
Step 900
900
#005025
oklch(37.8% 0.1 151.8)
-
Step 950
950
#003013
oklch(27.1% 0.072 151.4)
#5AD181 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) | #D2C17C | 0.135 |
| Deuteranopia (no green cones) | #C1B686 | 0.131 |
| Tritanopia (no blue cones) | #38CEBD | 0.084 |
| Achromatopsia (no color) | #BABABA | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5AD181
#5AD181
oklch(77.3% 0.157 151.7)
- #EE8DE2
#EE8DE2
oklch(77.3% 0.157 331.6)
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 #5AD181, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.031
- Soft Green #6FC276 ΔE 0.040
- Emerald #06D6A0 ΔE 0.041
- Aqua Green #12E193 ΔE 0.045
- Dark Mint #48C072 ΔE 0.052
- Greenblue #23C48B ΔE 0.053
- Algae Green #21C36F ΔE 0.056
- Weird Green #3AE57F ΔE 0.058
Use #5AD181 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.