#5BB66E
Closest named color: Boring Green (#63B365). oklch(70.2% 0.136 148.7), rgb(91, 182, 110).
Aa
Black text reads best on this color (8.36:1).
About this color
#5BB66E is a medium-light, moderately saturated green. In OKLCH its lightness is 70%, its chroma 0.136 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Boring Green (#63B365), ΔE 0.012 away. Black text reads best on it, at 8.36:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 8.36:1 |
| White text | 2.51:1 |
Values
| HEX | #5BB66E |
| RGB | rgb(91, 182, 110) |
| HSL | hsl(133, 38%, 54%) |
| OKLCH | oklch(70.2% 0.136 148.7) |
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 #5BB66E | 2.51:1 | Fails | Lc -54.1 | Large or bold text, headings |
| Black text on #5BB66E | 8.36:1 | AAA | Lc 54.9 | Large or bold text, headings |
| #5BB66E text on white | 2.51:1 | Fails | Lc 49.1 | Large or bold text, headings |
| #5BB66E text on black | 8.36:1 | AAA | Lc -52.9 | 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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFE1
oklch(93.6% 0.025 149.1)
-
Step 200
200
#C5E2C8
oklch(88.4% 0.047 148.1)
-
Step 300
300
#9AD0A2
oklch(80.8% 0.085 148.7)
-
Step 400
400 (this color)
#5BB66E
oklch(70.2% 0.136 148.7)
-
Step 500
500
#13A548
oklch(63.2% 0.175 148.7)
-
Step 600
600
#008B39
oklch(55.6% 0.158 148.7)
-
Step 700
700
#00752F
oklch(49.1% 0.139 148.8)
-
Step 800
800
#006025
oklch(42.7% 0.121 148.7)
-
Step 900
900
#00501E
oklch(37.6% 0.107 148.8)
-
Step 950
950
#043011
oklch(27.2% 0.072 148.7)
#5BB66E 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) | #B7A969 | 0.111 |
| Deuteranopia (no green cones) | #ABA073 | 0.110 |
| Tritanopia (no blue cones) | #4AB3A4 | 0.077 |
| Achromatopsia (no color) | #A3A3A3 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB66E
#5BB66E
oklch(70.2% 0.136 148.7)
- #CD7EC9
#CD7EC9
oklch(70.2% 0.137 328.7)
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 #5BB66E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.012
- Medium Sea Green #3CB371 ΔE 0.025
- Dark Mint #48C072 ΔE 0.029
- Algae #54AC68 ΔE 0.030
- Cool Green #33B864 ΔE 0.032
- Dark Pastel Green #56AE57 ΔE 0.032
- Dark Seafoam Green #3EAF76 ΔE 0.034
- Dark Seafoam #1FB57A ΔE 0.035
Use #5BB66E 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.