#648F6B
Closest named color: Slate Green (#658D6D). oklch(60.8% 0.072 148.9), rgb(100, 143, 107).
Aa
Black text reads best on this color (5.68:1).
About this color
#648F6B is a medium-dark, moderately saturated green. In OKLCH its lightness is 61%, its chroma 0.072 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.008 away. Black text reads best on it, at 5.68:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #648F6B |
| RGB | rgb(100, 143, 107) |
| HSL | hsl(130, 18%, 48%) |
| OKLCH | oklch(60.8% 0.072 148.9) |
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 #648F6B | 3.69:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #648F6B | 5.68:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #648F6B text on white | 3.69:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #648F6B text on black | 5.68:1 | AA | Lc -37.2 | 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 500.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE6
oklch(93.6% 0.011 149.9)
-
Step 200
200
#D1DDD2
oklch(88.5% 0.02 147.8)
-
Step 300
300
#B2C7B4
oklch(80.8% 0.035 148)
-
Step 400
400
#89AB8E
oklch(70.8% 0.056 149.1)
-
Step 500
500 (this color)
#648F6B
oklch(60.8% 0.072 148.9)
-
Step 600
600
#52805A
oklch(55.6% 0.077 148.9)
-
Step 700
700
#426C4A
oklch(49% 0.072 149.2)
-
Step 800
800
#37583D
oklch(42.7% 0.059 149.1)
-
Step 900
900
#304934
oklch(37.8% 0.047 148.8)
-
Step 950
950
#1C2B1E
oklch(27.1% 0.031 148.1)
#648F6B 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) | #908869 | 0.060 |
| Deuteranopia (no green cones) | #89836D | 0.059 |
| Tritanopia (no blue cones) | #5E8D85 | 0.041 |
| Achromatopsia (no color) | #858585 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648F6B
#648F6B
oklch(60.8% 0.072 148.9)
- #9B7398
#9B7398
oklch(60.8% 0.072 328.9)
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 #648F6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.008
- Green Grey #77926F ΔE 0.027
- Dark Sage #598556 ΔE 0.040
- Ocean Green #3D9973 ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.041
- Light Forest Green #4F9153 ΔE 0.045
- Drab Green #749551 ΔE 0.046
- Camo #7F8F4E ΔE 0.046
Use #648F6B 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.