#538A09
Closest named color: Sap Green (#5C8B15). oklch(57.3% 0.156 132.2), rgb(83, 138, 9).
Aa
Black text reads best on this color (5.00:1).
About this color
#538A09 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.156 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.013 away. Black text reads best on it, at 5.00:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #538A09 |
| RGB | rgb(83, 138, 9) |
| HSL | hsl(86, 88%, 29%) |
| OKLCH | oklch(57.3% 0.156 132.2) |
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 #538A09 | 4.19:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #538A09 | 5.00:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #538A09 text on white | 4.19:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #538A09 text on black | 5.00:1 | AA | Lc -33.0 | 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
#F3F7F0
oklch(97.1% 0.01 131.4)
-
Step 100
100
#E5EDDF
oklch(93.6% 0.02 131.5)
-
Step 200
200
#D0DFC5
oklch(88.5% 0.039 131.9)
-
Step 300
300
#B0CB9C
oklch(81% 0.07 132.2)
-
Step 400
400
#86AF64
oklch(70.6% 0.112 132.1)
-
Step 500
500
#679B35
oklch(63.1% 0.144 132.3)
-
Step 600
600 (this color)
#538A09
oklch(57.3% 0.156 132.2)
-
Step 700
700
#417000
oklch(49.2% 0.137 132.3)
-
Step 800
800
#355B00
oklch(42.6% 0.118 131.9)
-
Step 900
900
#2E4B0E
oklch(37.6% 0.093 131.9)
-
Step 950
950
#1B2C0B
oklch(26.9% 0.059 132.2)
#538A09 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) | #907E00 | 0.087 |
| Deuteranopia (no green cones) | #897A1D | 0.087 |
| Tritanopia (no blue cones) | #548475 | 0.119 |
| Achromatopsia (no color) | #7C7C7C | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538A09
#538A09
oklch(57.3% 0.156 132.2)
- #9758BA
#9758BA
oklch(57.3% 0.157 312.1)
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 #538A09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.013
- Mossy Green #638B27 ΔE 0.027
- Olive Drab #6B8E23 ΔE 0.036
- Forest Green #228B22 ΔE 0.036
- Moss Green #658B38 ΔE 0.040
- Fern Green #548D44 ΔE 0.041
- Swamp Green #748500 ΔE 0.042
- Dark Yellow Green #728F02 ΔE 0.042
Use #538A09 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.