#538D1C
Closest named color: Sap Green (#5C8B15). oklch(58.2% 0.153 133.6), rgb(83, 141, 28).
Aa
Black text reads best on this color (5.19:1).
About this color
#538D1C is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.153 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.010 away. Black text reads best on it, at 5.19:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.19:1 |
| White text | 4.04:1 |
Values
| HEX | #538D1C |
| RGB | rgb(83, 141, 28) |
| HSL | hsl(91, 67%, 33%) |
| OKLCH | oklch(58.2% 0.153 133.6) |
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 #538D1C | 4.04:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #538D1C | 5.19:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #538D1C text on white | 4.04:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #538D1C text on black | 5.19:1 | AA | Lc -34.2 | 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
#E5EDE0
oklch(93.6% 0.019 133.1)
-
Step 200
200
#CFDFC6
oklch(88.5% 0.038 134.1)
-
Step 300
300
#AFCB9E
oklch(80.9% 0.069 133.8)
-
Step 400
400
#84B067
oklch(70.8% 0.111 133.8)
-
Step 500
500
#659B3B
oklch(63.1% 0.14 133.7)
-
Step 600
600 (this color)
#538D1C
oklch(58.2% 0.153 133.6)
-
Step 700
700
#3D7000
oklch(49% 0.14 133.6)
-
Step 800
800
#325C06
oklch(42.7% 0.118 133.7)
-
Step 900
900
#2C4C12
oklch(37.8% 0.093 134)
-
Step 950
950
#1A2C0C
oklch(26.9% 0.058 133.6)
#538D1C 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) | #938100 | 0.088 |
| Deuteranopia (no green cones) | #8B7D28 | 0.088 |
| Tritanopia (no blue cones) | #538778 | 0.113 |
| Achromatopsia (no color) | #7E7E7E | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538D1C
#538D1C
oklch(58.2% 0.153 133.6)
- #9B5BB9
#9B5BB9
oklch(58.2% 0.153 314)
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 #538D1C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.010
- Mossy Green #638B27 ΔE 0.022
- Olive Drab #6B8E23 ΔE 0.030
- Moss Green #658B38 ΔE 0.035
- Fern Green #548D44 ΔE 0.035
- Dark Yellow Green #728F02 ΔE 0.037
- Forest Green #228B22 ΔE 0.039
- Swamp Green #748500 ΔE 0.042
Use #538D1C 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.