#5BB557
Closest named color: Boring Green (#63B365). oklch(69.6% 0.157 142.9), rgb(91, 181, 87).
Aa
Black text reads best on this color (8.19:1).
About this color
#5BB557 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.157 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Boring Green (#63B365), ΔE 0.021 away. Black text reads best on it, at 8.19:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 8.19:1 |
| White text | 2.56:1 |
Values
| HEX | #5BB557 |
| RGB | rgb(91, 181, 87) |
| HSL | hsl(117, 39%, 53%) |
| OKLCH | oklch(69.6% 0.157 142.9) |
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 #5BB557 | 2.56:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #5BB557 | 8.19:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #5BB557 text on white | 2.56:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #5BB557 text on black | 8.19:1 | AAA | Lc -52.0 | Large or bold text, headings |
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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C5E3C2
oklch(88.5% 0.055 142.6)
-
Step 300
300
#9BD197
oklch(80.8% 0.098 142.9)
-
Step 400
400 (this color)
#5BB557
oklch(69.6% 0.157 142.9)
-
Step 500
500
#1DA620
oklch(63.2% 0.201 142.9)
-
Step 600
600
#008C09
oklch(55.5% 0.186 142.9)
-
Step 700
700
#007606
oklch(49% 0.165 142.9)
-
Step 800
800
#006104
oklch(42.7% 0.144 142.9)
-
Step 900
900
#005103
oklch(37.7% 0.127 142.9)
-
Step 950
950
#053005
oklch(27% 0.083 142.8)
#5BB557 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) | #B9A74F | 0.115 |
| Deuteranopia (no green cones) | #AC9F5E | 0.113 |
| Tritanopia (no blue cones) | #4FB09F | 0.100 |
| Achromatopsia (no color) | #A2A2A2 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB557
#5BB557
oklch(69.6% 0.157 142.9)
- #CB78D5
#CB78D5
oklch(69.5% 0.158 323.1)
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 #5BB557, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.021
- Dark Pastel Green #56AE57 ΔE 0.021
- Cool Green #33B864 ΔE 0.025
- Turtle Green #75B84F ΔE 0.028
- Leafy Green #51B73B ΔE 0.031
- Fern #63A950 ΔE 0.033
- Dark Mint #48C072 ΔE 0.035
- Medium Sea Green #3CB371 ΔE 0.036
Use #5BB557 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.