#578B01
Closest named color: Sap Green (#5C8B15). oklch(57.8% 0.157 131), rgb(87, 139, 1).
Aa
Black text reads best on this color (5.09:1).
About this color
#578B01 is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.157 and its hue 131°. 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 5.09:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.09:1 |
| White text | 4.11:1 |
Values
| HEX | #578B01 |
| RGB | rgb(87, 139, 1) |
| HSL | hsl(83, 99%, 27%) |
| OKLCH | oklch(57.8% 0.157 131) |
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 #578B01 | 4.11:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #578B01 | 5.09:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #578B01 text on white | 4.11:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #578B01 text on black | 5.09:1 | AA | Lc -33.6 | 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
#D0DFC4
oklch(88.5% 0.04 131.1)
-
Step 300
300
#B1CB9B
oklch(81% 0.071 131)
-
Step 400
400
#88AF62
oklch(70.7% 0.113 130.8)
-
Step 500
500
#6A9A31
oklch(63% 0.144 130.7)
-
Step 600
600 (this color)
#578B01
oklch(57.8% 0.157 131)
-
Step 700
700
#446F00
oklch(49.1% 0.134 131.1)
-
Step 800
800
#375B00
oklch(42.7% 0.117 131.1)
-
Step 900
900
#2F4B0B
oklch(37.7% 0.094 131)
-
Step 950
950
#1C2C0A
oklch(27% 0.059 130.8)
#578B01 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) | #927F00 | 0.087 |
| Deuteranopia (no green cones) | #8B7C1A | 0.084 |
| Tritanopia (no blue cones) | #598575 | 0.120 |
| Achromatopsia (no color) | #7D7D7D | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578B01
#578B01
oklch(57.8% 0.157 131)
- #975ABD
#975ABD
oklch(57.8% 0.157 310.9)
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 #578B01, 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 0.025
- Olive Drab #6B8E23 ΔE 0.032
- Dark Yellow Green #728F02 ΔE 0.037
- Swamp Green #748500 ΔE 0.039
- Moss Green #658B38 ΔE 0.039
- Forest Green #228B22 ΔE 0.041
- Fern Green #548D44 ΔE 0.042
Use #578B01 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.