#577A51
Closest named color: Military Green (#667C3E). oklch(54.2% 0.074 140.9), rgb(87, 122, 81).
Aa
White text reads best on this color (4.87:1).
About this color
#577A51 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.074 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Military Green (#667C3E), ΔE 0.031 away. White text reads best on it, at 4.87:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Military Green (#667C3E) |
| Black text | 4.30:1 |
| White text | 4.87:1 |
Values
| HEX | #577A51 |
| RGB | rgb(87, 122, 81) |
| HSL | hsl(111, 20%, 40%) |
| OKLCH | oklch(54.2% 0.074 140.9) |
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 #577A51 | 4.87:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #577A51 | 4.30:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #577A51 text on white | 4.87:1 | AA | Lc 73.7 | Content text, not long reading |
| #577A51 text on black | 4.30:1 | AA large text | Lc -28.0 | 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E6EBE5
oklch(93.5% 0.01 140.5)
-
Step 200
200
#D3DCD1
oklch(88.5% 0.018 140)
-
Step 300
300
#B5C6B2
oklch(80.8% 0.033 141)
-
Step 400
400
#8FA98A
oklch(70.6% 0.053 140.6)
-
Step 500
500
#73946D
oklch(63.1% 0.068 140.7)
-
Step 600
600 (this color)
#577A51
oklch(54.2% 0.074 140.9)
-
Step 700
700
#4B6B45
oklch(49.2% 0.07 140.6)
-
Step 800
800
#3E5739
oklch(42.8% 0.057 140.4)
-
Step 900
900
#354831
oklch(37.8% 0.045 140.2)
-
Step 950
950
#1F2A1D
oklch(27% 0.028 140.7)
#577A51 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) | #7C734E | 0.054 |
| Deuteranopia (no green cones) | #777053 | 0.053 |
| Tritanopia (no blue cones) | #55776F | 0.048 |
| Achromatopsia (no color) | #717171 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577A51
#577A51
oklch(54.2% 0.074 140.9)
- #836189
#836189
oklch(54.2% 0.073 321.3)
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 #577A51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Military Green #667C3E ΔE 0.031
- Dark Sage #598556 ΔE 0.033
- Muddy Green #657432 ΔE 0.036
- Dark Moss Green #606C38 ΔE 0.043
- Swamp #698339 ΔE 0.050
- Dark Olive Green #556B2F ΔE 0.053
- Sea Green #2E8B57 ΔE 0.057
- Murky Green #6C7A0E ΔE 0.063
Use #577A51 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.