#5BD081
Closest named color: Seaweed (#18D17B). oklch(77.1% 0.155 151.7), rgb(91, 208, 129).
Aa
Black text reads best on this color (10.78:1).
About this color
#5BD081 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.155 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.032 away. Black text reads best on it, at 10.78:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.78:1 |
| White text | 1.94:1 |
Values
| HEX | #5BD081 |
| RGB | rgb(91, 208, 129) |
| HSL | hsl(139, 55%, 59%) |
| OKLCH | oklch(77.1% 0.155 151.7) |
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 #5BD081 | 1.94:1 | Fails | Lc -41.5 | Non-text elements, placeholder text |
| Black text on #5BD081 | 10.78:1 | AAA | Lc 66.8 | Content text, not long reading |
| #5BD081 text on white | 1.94:1 | Fails | Lc 37.1 | Non-text elements, placeholder text |
| #5BD081 text on black | 10.78:1 | AAA | Lc -65.3 | 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 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
#AFEABD
oklch(88.5% 0.086 151.7)
-
Step 300
300 (this color)
#5BD081
oklch(77.1% 0.155 151.7)
-
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)
#5BD081 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) | #D1C07C | 0.134 |
| Deuteranopia (no green cones) | #C1B586 | 0.131 |
| Tritanopia (no blue cones) | #3BCDBC | 0.083 |
| Achromatopsia (no color) | #BABABA | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BD081
#5BD081
oklch(77.1% 0.155 151.7)
- #ED8DE1
#ED8DE1
oklch(77.1% 0.156 331.6)
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 #5BD081, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.032
- Soft Green #6FC276 ΔE 0.038
- Emerald #06D6A0 ΔE 0.042
- Aqua Green #12E193 ΔE 0.047
- Dark Mint #48C072 ΔE 0.049
- Greenblue #23C48B ΔE 0.051
- Algae Green #21C36F ΔE 0.054
- Dark Mint Green #20C073 ΔE 0.060
Use #5BD081 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.