#587B66
Closest named color: Dark Sage (#598556). oklch(55% 0.052 157.9), rgb(88, 123, 102).
Aa
White text reads best on this color (4.72:1).
About this color
#587B66 is a medium-dark, muted green. In OKLCH its lightness is 55%, its chroma 0.052 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.044 away. White text reads best on it, at 4.72:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.43:1 |
| White text | 4.72:1 |
Values
| HEX | #587B66 |
| RGB | rgb(88, 123, 102) |
| HSL | hsl(144, 17%, 41%) |
| OKLCH | oklch(55% 0.052 157.9) |
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 #587B66 | 4.72:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #587B66 | 4.43:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #587B66 text on white | 4.72:1 | AA | Lc 72.8 | Content text, not long reading |
| #587B66 text on black | 4.43:1 | AA large text | Lc -28.9 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD6
oklch(88.5% 0.013 159.9)
-
Step 300
300
#B5C5BB
oklch(80.8% 0.022 158.5)
-
Step 400
400
#8EA898
oklch(70.7% 0.037 158.3)
-
Step 500
500
#72937F
oklch(63.2% 0.048 158.1)
-
Step 600
600 (this color)
#587B66
oklch(55% 0.052 157.9)
-
Step 700
700
#496956
oklch(49% 0.048 158)
-
Step 800
800
#3D5647
oklch(42.8% 0.039 157.9)
-
Step 900
900
#34473B
oklch(37.8% 0.032 156.8)
-
Step 950
950
#1F2923
oklch(26.9% 0.018 158.6)
#587B66 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) | #7A7665 | 0.048 |
| Deuteranopia (no green cones) | #747267 | 0.045 |
| Tritanopia (no blue cones) | #527A75 | 0.024 |
| Achromatopsia (no color) | #737373 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #587B66
#587B66
oklch(55% 0.052 157.9)
- #86667C
#86667C
oklch(55% 0.052 338.1)
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 #587B66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.044
- Battleship Gray #6C757D ΔE 0.054
- Military Green #667C3E ΔE 0.055
- Battleship Grey #6B7C85 ΔE 0.056
- Slate Green #658D6D ΔE 0.057
- Grey Brown #7F7053 ΔE 0.059
- Dim Gray #696969 ΔE 0.059
- Teal #008080 ΔE 0.060
Use #587B66 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.