#638865
Closest named color: Slate Green (#658D6D). oklch(58.9% 0.067 146), rgb(99, 136, 101).
Aa
Black text reads best on this color (5.24:1).
About this color
#638865 is a medium-dark, muted green. In OKLCH its lightness is 59%, its chroma 0.067 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.016 away. Black text reads best on it, at 5.24:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #638865 |
| RGB | rgb(99, 136, 101) |
| HSL | hsl(123, 16%, 46%) |
| OKLCH | oklch(58.9% 0.067 146) |
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 #638865 | 4.00:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #638865 | 5.24:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #638865 text on white | 4.00:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #638865 text on black | 5.24:1 | AA | Lc -34.3 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE6
oklch(93.5% 0.009 145.5)
-
Step 200
200
#D2DCD3
oklch(88.4% 0.016 148.4)
-
Step 300
300
#B5C6B5
oklch(80.9% 0.03 145.3)
-
Step 400
400
#8EA98F
oklch(70.7% 0.048 146)
-
Step 500
500
#729473
oklch(63.2% 0.062 145.5)
-
Step 600
600 (this color)
#638865
oklch(58.9% 0.067 146)
-
Step 700
700
#496A4B
oklch(49% 0.062 146)
-
Step 800
800
#3C573E
oklch(42.7% 0.052 146.4)
-
Step 900
900
#344735
oklch(37.6% 0.039 146.1)
-
Step 950
950
#1E2A1F
oklch(27% 0.026 147)
#638865 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) | #898163 | 0.054 |
| Deuteranopia (no green cones) | #837D67 | 0.053 |
| Tritanopia (no blue cones) | #5F867E | 0.039 |
| Achromatopsia (no color) | #7F7F7F | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638865
#638865
oklch(58.9% 0.067 146)
- #926F93
#926F93
oklch(58.9% 0.068 325.5)
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 #638865, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.016
- Dark Sage #598556 ΔE 0.026
- Green Grey #77926F ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.046
- Light Forest Green #4F9153 ΔE 0.048
- Drab #828344 ΔE 0.051
- Military Green #667C3E ΔE 0.051
- Swamp #698339 ΔE 0.051
Use #638865 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.