#5BCF85
Closest named color: Seaweed (#18D17B). oklch(76.9% 0.15 153), rgb(91, 207, 133).
Aa
Black text reads best on this color (10.70:1).
About this color
#5BCF85 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.150 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.035 away. Black text reads best on it, at 10.70:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.70:1 |
| White text | 1.96:1 |
Values
| HEX | #5BCF85 |
| RGB | rgb(91, 207, 133) |
| HSL | hsl(142, 55%, 58%) |
| OKLCH | oklch(76.9% 0.15 153) |
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 #5BCF85 | 1.96:1 | Fails | Lc -41.8 | Non-text elements, placeholder text |
| Black text on #5BCF85 | 10.70:1 | AAA | Lc 66.4 | Content text, not long reading |
| #5BCF85 text on white | 1.96:1 | Fails | Lc 37.5 | Non-text elements, placeholder text |
| #5BCF85 text on black | 10.70:1 | AAA | Lc -64.9 | 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
#D5F3DC
oklch(93.6% 0.044 152.4)
-
Step 200
200
#AFEABF
oklch(88.5% 0.084 152.9)
-
Step 300
300 (this color)
#5BCF85
oklch(76.9% 0.15 153)
-
Step 400
400
#00C067
oklch(70.8% 0.182 153.1)
-
Step 500
500
#00A457
oklch(63% 0.162 153)
-
Step 600
600
#008A48
oklch(55.5% 0.143 153)
-
Step 700
700
#00743C
oklch(49% 0.126 153.1)
-
Step 800
800
#005F30
oklch(42.6% 0.109 153.1)
-
Step 900
900
#005027
oklch(37.8% 0.098 152.9)
-
Step 950
950
#003015
oklch(27.1% 0.07 152.9)
#5BCF85 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) | #CFC080 | 0.130 |
| Deuteranopia (no green cones) | #BFB58A | 0.127 |
| Tritanopia (no blue cones) | #39CDBC | 0.077 |
| Achromatopsia (no color) | #B9B9B9 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BCF85
#5BCF85
oklch(76.9% 0.15 153)
- #EC8EDD
#EC8EDD
oklch(77% 0.15 333)
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 #5BCF85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.035
- Soft Green #6FC276 ΔE 0.035
- Emerald #06D6A0 ΔE 0.039
- Greenblue #23C48B ΔE 0.047
- Dark Mint #48C072 ΔE 0.048
- Aqua Green #12E193 ΔE 0.050
- Medium Aquamarine #66CDAA ΔE 0.054
- Algae Green #21C36F ΔE 0.055
Use #5BCF85 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.