#5B8B68
Closest named color: Slate Green (#658D6D). oklch(59.2% 0.075 152.2), rgb(91, 139, 104).
Aa
Black text reads best on this color (5.33:1).
About this color
#5B8B68 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.075 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.016 away. Black text reads best on it, at 5.33:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.33:1 |
| White text | 3.93:1 |
Values
| HEX | #5B8B68 |
| RGB | rgb(91, 139, 104) |
| HSL | hsl(136, 21%, 45%) |
| OKLCH | oklch(59.2% 0.075 152.2) |
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 #5B8B68 | 3.93:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #5B8B68 | 5.33:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #5B8B68 text on white | 3.93:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #5B8B68 text on black | 5.33:1 | AA | Lc -35.0 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#D1DDD3
oklch(88.6% 0.019 150.5)
-
Step 300
300
#B1C7B6
oklch(80.8% 0.034 152.3)
-
Step 400
400
#88AB90
oklch(70.8% 0.055 151.7)
-
Step 500
500
#6A9675
oklch(63.2% 0.069 151.8)
-
Step 600
600 (this color)
#5B8B68
oklch(59.2% 0.075 152.2)
-
Step 700
700
#416C4D
oklch(49.1% 0.069 152.1)
-
Step 800
800
#36583F
oklch(42.7% 0.057 151.8)
-
Step 900
900
#2F4936
oklch(37.8% 0.045 152.2)
-
Step 950
950
#1C2B20
oklch(27.2% 0.029 152.5)
#5B8B68 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) | #8B8366 | 0.065 |
| Deuteranopia (no green cones) | #847E6A | 0.065 |
| Tritanopia (no blue cones) | #538A81 | 0.038 |
| Achromatopsia (no color) | #808080 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B8B68
#5B8B68
oklch(59.2% 0.075 152.2)
- #996D92
#996D92
oklch(59.2% 0.076 332.2)
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 #5B8B68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.016
- Dark Sage #598556 ΔE 0.027
- Dusty Teal #4C9085 ΔE 0.040
- Light Forest Green #4F9153 ΔE 0.042
- Green Grey #77926F ΔE 0.043
- Ocean Green #3D9973 ΔE 0.043
- Viridian #1E9167 ΔE 0.047
- Sea Green #2E8B57 ΔE 0.050
Use #5B8B68 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.