#538E2B
Closest named color: Sap Green (#5C8B15). oklch(58.5% 0.145 135.2), rgb(83, 142, 43).
Aa
Black text reads best on this color (5.27:1).
About this color
#538E2B is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.145 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.014 away. Black text reads best on it, at 5.27:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #538E2B |
| RGB | rgb(83, 142, 43) |
| HSL | hsl(96, 54%, 36%) |
| OKLCH | oklch(58.5% 0.145 135.2) |
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 #538E2B | 3.98:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #538E2B | 5.27:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #538E2B text on white | 3.98:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #538E2B text on black | 5.27:1 | AA | Lc -34.7 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E4EDE0
oklch(93.6% 0.02 135.8)
-
Step 200
200
#CFDFC7
oklch(88.5% 0.037 135)
-
Step 300
300
#AFCBA1
oklch(81% 0.065 135.3)
-
Step 400
400
#84AF6C
oklch(70.6% 0.104 135)
-
Step 500
500
#649B43
oklch(63.1% 0.134 135.2)
-
Step 600
600 (this color)
#538E2B
oklch(58.5% 0.145 135.2)
-
Step 700
700
#3B7011
oklch(48.9% 0.134 135.2)
-
Step 800
800
#315C13
oklch(42.8% 0.112 135.4)
-
Step 900
900
#2C4B18
oklch(37.6% 0.086 135.1)
-
Step 950
950
#1A2C0F
oklch(26.9% 0.055 135)
#538E2B 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) | #93821D | 0.088 |
| Deuteranopia (no green cones) | #8B7E34 | 0.088 |
| Tritanopia (no blue cones) | #52897A | 0.104 |
| Achromatopsia (no color) | #7F7F7F | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538E2B
#538E2B
oklch(58.5% 0.145 135.2)
- #9C5EB6
#9C5EB6
oklch(58.6% 0.145 315.2)
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 #538E2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.014
- Mossy Green #638B27 ΔE 0.018
- Fern Green #548D44 ΔE 0.026
- Olive Drab #6B8E23 ΔE 0.027
- Moss Green #658B38 ΔE 0.028
- Dark Yellow Green #728F02 ΔE 0.038
- Light Forest Green #4F9153 ΔE 0.039
- Forest Green #228B22 ΔE 0.042
Use #538E2B 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.