#5BBB59
Closest named color: Turtle Green (#75B84F). oklch(71.1% 0.164 143.2), rgb(91, 187, 89).
Aa
Black text reads best on this color (8.69:1).
About this color
#5BBB59 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.164 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Turtle Green (#75B84F), ΔE 0.023 away. Black text reads best on it, at 8.69:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.164) |
| Temperature | in between |
| Nearest name | Turtle Green (#75B84F) |
| Black text | 8.69:1 |
| White text | 2.41:1 |
Values
| HEX | #5BBB59 |
| RGB | rgb(91, 187, 89) |
| HSL | hsl(119, 42%, 54%) |
| OKLCH | oklch(71.1% 0.164 143.2) |
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 #5BBB59 | 2.41:1 | Fails | Lc -52.3 | Large or bold text, headings |
| Black text on #5BBB59 | 8.69:1 | AAA | Lc 56.7 | Large or bold text, headings |
| #5BBB59 text on white | 2.41:1 | Fails | Lc 47.3 | Large or bold text, headings |
| #5BBB59 text on black | 8.69:1 | AAA | Lc -54.7 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDD
oklch(93.5% 0.029 142.2)
-
Step 200
200
#C4E3C1
oklch(88.4% 0.056 142.7)
-
Step 300
300
#99D296
oklch(80.9% 0.102 143.4)
-
Step 400
400 (this color)
#5BBB59
oklch(71.1% 0.164 143.2)
-
Step 500
500
#02A717
oklch(63.2% 0.209 143.3)
-
Step 600
600
#008C11
oklch(55.5% 0.184 143.3)
-
Step 700
700
#00760C
oklch(49.1% 0.163 143.2)
-
Step 800
800
#006108
oklch(42.7% 0.142 143.2)
-
Step 900
900
#005106
oklch(37.7% 0.125 143.3)
-
Step 950
950
#023004
oklch(26.9% 0.086 143.4)
#5BBB59 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) | #BFAC50 | 0.121 |
| Deuteranopia (no green cones) | #B2A360 | 0.120 |
| Tritanopia (no blue cones) | #4EB6A5 | 0.104 |
| Achromatopsia (no color) | #A7A7A7 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BBB59
#5BBB59
oklch(71.1% 0.164 143.2)
- #D27BDC
#D27BDC
oklch(71.1% 0.164 323.3)
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 #5BBB59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turtle Green #75B84F ΔE 0.023
- Dark Mint #48C072 ΔE 0.027
- Cool Green #33B864 ΔE 0.030
- Leafy Green #51B73B ΔE 0.031
- Boring Green #63B365 ΔE 0.031
- Algae Green #21C36F ΔE 0.034
- Dark Mint Green #20C073 ΔE 0.035
- Dark Pastel Green #56AE57 ΔE 0.038
Use #5BBB59 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.