#688571
Closest named color: Slate Green (#658D6D). oklch(58.8% 0.045 154.7), rgb(104, 133, 113).
Aa
Black text reads best on this color (5.18:1).
About this color
#688571 is a medium-dark, muted green. In OKLCH its lightness is 59%, its chroma 0.045 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.027 away. Black text reads best on it, at 5.18:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.18:1 |
| White text | 4.05:1 |
Values
| HEX | #688571 |
| RGB | rgb(104, 133, 113) |
| HSL | hsl(139, 12%, 46%) |
| OKLCH | oklch(58.8% 0.045 154.7) |
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 #688571 | 4.05:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #688571 | 5.18:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #688571 text on white | 4.05:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #688571 text on black | 5.18:1 | AA | Lc -33.9 | Non-text elements, placeholder text |
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
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D4DBD6
oklch(88.5% 0.01 155.1)
-
Step 300
300
#B7C5BB
oklch(81% 0.021 154.8)
-
Step 400
400
#91A798
oklch(70.7% 0.033 155.7)
-
Step 500
500
#76917E
oklch(63% 0.042 154.4)
-
Step 600
600 (this color)
#688571
oklch(58.8% 0.045 154.7)
-
Step 700
700
#4E6856
oklch(49.1% 0.042 154.4)
-
Step 800
800
#405547
oklch(42.8% 0.035 155.5)
-
Step 900
900
#36463B
oklch(37.7% 0.028 154.9)
-
Step 950
950
#202923
oklch(27% 0.017 155.9)
#688571 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) | #858070 | 0.041 |
| Deuteranopia (no green cones) | #807D72 | 0.039 |
| Tritanopia (no blue cones) | #64847F | 0.022 |
| Achromatopsia (no color) | #7E7E7E | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #688571
#688571
oklch(58.8% 0.045 154.7)
- #8E7388
#8E7388
oklch(58.8% 0.045 334)
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 #688571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.027
- Medium Grey #7D7F7C ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.042
- Steel Grey #6F828A ΔE 0.044
- Dark Sage #598556 ΔE 0.046
- Green Grey #77926F ΔE 0.046
- Gray #808080 ΔE 0.046
- Battleship Grey #6B7C85 ΔE 0.047
Use #688571 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.