#557F23
Closest named color: Olive Green (#677A04). oklch(54.6% 0.129 131), rgb(85, 127, 35).
Aa
White text reads best on this color (4.72:1).
About this color
#557F23 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.129 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 0.025 away. White text reads best on it, at 4.72:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #557F23 |
| RGB | rgb(85, 127, 35) |
| HSL | hsl(87, 57%, 32%) |
| OKLCH | oklch(54.6% 0.129 131) |
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 #557F23 | 4.72:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #557F23 | 4.44:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #557F23 text on white | 4.72:1 | AA | Lc 72.6 | Content text, not long reading |
| #557F23 text on black | 4.44:1 | 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
#D2DEC8
oklch(88.5% 0.032 130.6)
-
Step 300
300
#B4C9A2
oklch(81% 0.058 130.7)
-
Step 400
400
#8CAD6F
oklch(70.7% 0.093 131.2)
-
Step 500
500
#709847
oklch(63.2% 0.119 130.9)
-
Step 600
600 (this color)
#557F23
oklch(54.6% 0.129 131)
-
Step 700
700
#486E18
oklch(49.2% 0.121 130.9)
-
Step 800
800
#3B5917
oklch(42.6% 0.099 130.8)
-
Step 900
900
#334A1A
oklch(37.8% 0.078 130.8)
-
Step 950
950
#1E2B10
oklch(26.9% 0.049 130.3)
#557F23 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) | #857514 | 0.070 |
| Deuteranopia (no green cones) | #7F722B | 0.071 |
| Tritanopia (no blue cones) | #57796D | 0.100 |
| Achromatopsia (no color) | #737373 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557F23
#557F23
oklch(54.6% 0.129 131)
- #8858A7
#8858A7
oklch(54.6% 0.129 310.8)
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 #557F23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.025
- Murky Green #6C7A0E ΔE 0.030
- Swamp #698339 ΔE 0.037
- Dark Grass Green #388004 ΔE 0.037
- Sap Green #5C8B15 ΔE 0.040
- Military Green #667C3E ΔE 0.040
- Mossy Green #638B27 ΔE 0.041
- Tree Green #2A7E19 ΔE 0.043
Use #557F23 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.