#557F28
Closest named color: Olive Green (#677A04). oklch(54.7% 0.125 131.5), rgb(85, 127, 40).
Aa
White text reads best on this color (4.71:1).
About this color
#557F28 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.125 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.026 away. White text reads best on it, at 4.71:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #557F28 |
| RGB | rgb(85, 127, 40) |
| HSL | hsl(89, 52%, 33%) |
| OKLCH | oklch(54.7% 0.125 131.5) |
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 #557F28 | 4.71:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #557F28 | 4.45:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #557F28 text on white | 4.71:1 | AA | Lc 72.6 | Content text, not long reading |
| #557F28 text on black | 4.45:1 | AA large text | Lc -29.1 | Dividers and decoration only |
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
#F4F7F1
oklch(97.2% 0.009 128.6)
-
Step 100
100
#E6ECE1
oklch(93.5% 0.016 130.4)
-
Step 200
200
#D2DEC9
oklch(88.6% 0.031 131.6)
-
Step 300
300
#B4C9A3
oklch(81% 0.057 131.2)
-
Step 400
400
#8CAD71
oklch(70.8% 0.091 131.8)
-
Step 500
500
#70984A
oklch(63.2% 0.116 131.4)
-
Step 600
600 (this color)
#557F28
oklch(54.7% 0.125 131.5)
-
Step 700
700
#486E1D
oklch(49.2% 0.117 131.4)
-
Step 800
800
#3B591B
oklch(42.6% 0.096 131.4)
-
Step 900
900
#334A1C
oklch(37.8% 0.076 131.3)
-
Step 950
950
#1E2B11
oklch(27% 0.048 130.8)
#557F28 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) | #85751C | 0.070 |
| Deuteranopia (no green cones) | #7F722F | 0.071 |
| Tritanopia (no blue cones) | #567A6D | 0.094 |
| Achromatopsia (no color) | #737373 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557F28
#557F28
oklch(54.7% 0.125 131.5)
- #8859A5
#8859A5
oklch(54.6% 0.125 311.4)
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 #557F28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.026
- Murky Green #6C7A0E ΔE 0.030
- Swamp #698339 ΔE 0.035
- Military Green #667C3E ΔE 0.037
- Dark Grass Green #388004 ΔE 0.040
- Mossy Green #638B27 ΔE 0.042
- Sap Green #5C8B15 ΔE 0.042
- Muddy Green #657432 ΔE 0.042
Use #557F28 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.