#577B50
Closest named color: Military Green (#667C3E). oklch(54.4% 0.077 140.5), rgb(87, 123, 80).
Aa
White text reads best on this color (4.82:1).
About this color
#577B50 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.077 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Military Green (#667C3E), ΔE 0.028 away. White text reads best on it, at 4.82:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Military Green (#667C3E) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #577B50 |
| RGB | rgb(87, 123, 80) |
| HSL | hsl(110, 21%, 40%) |
| OKLCH | oklch(54.4% 0.077 140.5) |
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 #577B50 | 4.82:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #577B50 | 4.35:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #577B50 text on white | 4.82:1 | AA | Lc 73.4 | Content text, not long reading |
| #577B50 text on black | 4.35:1 | AA large text | Lc -28.3 | 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
#E6ECE5
oklch(93.7% 0.011 141.3)
-
Step 200
200
#D3DCD1
oklch(88.5% 0.018 140)
-
Step 300
300
#B5C7B2
oklch(81% 0.035 141.2)
-
Step 400
400
#8EAA89
oklch(70.8% 0.056 140.9)
-
Step 500
500
#72946C
oklch(63% 0.07 140.8)
-
Step 600
600 (this color)
#577B50
oklch(54.4% 0.077 140.5)
-
Step 700
700
#4A6B44
oklch(49.1% 0.072 140.7)
-
Step 800
800
#3D5738
oklch(42.7% 0.059 140.5)
-
Step 900
900
#344830
oklch(37.7% 0.047 140.4)
-
Step 950
950
#1F2A1C
oklch(27% 0.03 139)
#577B50 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) | #7D744D | 0.055 |
| Deuteranopia (no green cones) | #787152 | 0.054 |
| Tritanopia (no blue cones) | #557870 | 0.051 |
| Achromatopsia (no color) | #727272 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577B50
#577B50
oklch(54.4% 0.077 140.5)
- #84618B
#84618B
oklch(54.4% 0.076 320.7)
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 #577B50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Military Green #667C3E ΔE 0.028
- Dark Sage #598556 ΔE 0.030
- Muddy Green #657432 ΔE 0.036
- Dark Moss Green #606C38 ΔE 0.045
- Swamp #698339 ΔE 0.047
- Dark Olive Green #556B2F ΔE 0.054
- Sea Green #2E8B57 ΔE 0.054
- Khaki Green #728639 ΔE 0.059
Use #577B50 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.