#5BB971
Closest named color: Boring Green (#63B365). oklch(71% 0.138 149.4), rgb(91, 185, 113).
Aa
Black text reads best on this color (8.62:1).
About this color
#5BB971 is a medium-light, moderately saturated green. In OKLCH its lightness is 71%, its chroma 0.138 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 0.018 away. Black text reads best on it, at 8.62:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 8.62:1 |
| White text | 2.43:1 |
Values
| HEX | #5BB971 |
| RGB | rgb(91, 185, 113) |
| HSL | hsl(134, 40%, 54%) |
| OKLCH | oklch(71% 0.138 149.4) |
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 #5BB971 | 2.43:1 | Fails | Lc -52.7 | Large or bold text, headings |
| Black text on #5BB971 | 8.62:1 | AAA | Lc 56.3 | Large or bold text, headings |
| #5BB971 text on white | 2.43:1 | Fails | Lc 47.7 | Large or bold text, headings |
| #5BB971 text on black | 8.62:1 | AAA | Lc -54.3 | 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
#C4E3C8
oklch(88.6% 0.049 148.8)
-
Step 300
300
#99D1A3
oklch(81% 0.087 149.6)
-
Step 400
400 (this color)
#5BB971
oklch(71% 0.138 149.4)
-
Step 500
500
#01A549
oklch(63.1% 0.176 149.5)
-
Step 600
600
#008B3C
oklch(55.6% 0.155 149.4)
-
Step 700
700
#007531
oklch(49.1% 0.138 149.3)
-
Step 800
800
#006027
oklch(42.7% 0.12 149.3)
-
Step 900
900
#00501F
oklch(37.7% 0.106 149.2)
-
Step 950
950
#023011
oklch(27.1% 0.073 149.4)
#5BB971 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) | #BAAB6C | 0.114 |
| Deuteranopia (no green cones) | #ADA276 | 0.113 |
| Tritanopia (no blue cones) | #48B6A7 | 0.077 |
| Achromatopsia (no color) | #A6A6A6 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB971
#5BB971
oklch(71% 0.138 149.4)
- #D080CB
#D080CB
oklch(70.9% 0.138 329.1)
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 #5BB971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.018
- Dark Mint #48C072 ΔE 0.022
- Medium Sea Green #3CB371 ΔE 0.030
- Soft Green #6FC276 ΔE 0.033
- Cool Green #33B864 ΔE 0.034
- Dark Mint Green #20C073 ΔE 0.034
- Faded Green #7BB274 ΔE 0.036
- Dark Seafoam #1FB57A ΔE 0.038
Use #5BB971 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.