#557B28
Closest named color: Olive Green (#677A04). oklch(53.6% 0.12 130.6), rgb(85, 123, 40).
Aa
White text reads best on this color (4.94:1).
About this color
#557B28 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.120 and its hue 131°. 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 4.94:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.25:1 |
| White text | 4.94:1 |
Values
| HEX | #557B28 |
| RGB | rgb(85, 123, 40) |
| HSL | hsl(87, 51%, 32%) |
| OKLCH | oklch(53.6% 0.12 130.6) |
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 #557B28 | 4.94:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #557B28 | 4.25:1 | AA large text | Lc 30.0 | Non-text elements, placeholder text |
| #557B28 text on white | 4.94:1 | AA | Lc 74.1 | Content text, not long reading |
| #557B28 text on black | 4.25:1 | AA large text | Lc -27.6 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E6ECE1
oklch(93.5% 0.016 130.4)
-
Step 200
200
#D2DDC9
oklch(88.4% 0.029 130.8)
-
Step 300
300
#B5C8A4
oklch(80.9% 0.053 130.3)
-
Step 400
400
#8EAC73
oklch(70.7% 0.086 130.9)
-
Step 500
500
#72974D
oklch(63.1% 0.11 130.8)
-
Step 600
600 (this color)
#557B28
oklch(53.6% 0.12 130.6)
-
Step 700
700
#4A6D21
oklch(49.1% 0.112 130.8)
-
Step 800
800
#3D591D
oklch(42.8% 0.093 130.7)
-
Step 900
900
#34491E
oklch(37.7% 0.072 130.7)
-
Step 950
950
#1F2B12
oklch(27.1% 0.046 130)
#557B28 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) | #81721D | 0.065 |
| Deuteranopia (no green cones) | #7B6F2F | 0.065 |
| Tritanopia (no blue cones) | #57766A | 0.092 |
| Achromatopsia (no color) | #707070 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557B28
#557B28
oklch(53.6% 0.12 130.6)
- #8358A1
#8358A1
oklch(53.7% 0.119 310.1)
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 #557B28, 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
- Muddy Green #657432 ΔE 0.033
- Military Green #667C3E ΔE 0.035
- Swamp #698339 ΔE 0.040
- Dark Grass Green #388004 ΔE 0.043
- Tree Green #2A7E19 ΔE 0.046
- Browny Green #6F6C0A ΔE 0.050
Use #557B28 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.