#638565
Closest named color: Slate Green (#658D6D). oklch(58.2% 0.062 146.2), rgb(99, 133, 101).
Aa
Black text reads best on this color (5.07:1).
About this color
#638565 is a medium-dark, muted green. In OKLCH its lightness is 58%, its chroma 0.062 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 0.024 away. Black text reads best on it, at 5.07:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #638565 |
| RGB | rgb(99, 133, 101) |
| HSL | hsl(124, 15%, 45%) |
| OKLCH | oklch(58.2% 0.062 146.2) |
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 #638565 | 4.13:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #638565 | 5.07:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #638565 text on white | 4.13:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #638565 text on black | 5.07:1 | AA | Lc -33.2 | 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 600.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D3DCD3
oklch(88.5% 0.016 145.4)
-
Step 300
300
#B6C6B6
oklch(81% 0.028 145.3)
-
Step 400
400
#8FA890
oklch(70.6% 0.044 146.2)
-
Step 500
500
#739375
oklch(63% 0.057 146.5)
-
Step 600
600 (this color)
#638565
oklch(58.2% 0.062 146.2)
-
Step 700
700
#4B6A4D
oklch(49.2% 0.058 146.2)
-
Step 800
800
#3E563F
oklch(42.6% 0.048 145.7)
-
Step 900
900
#354736
oklch(37.7% 0.037 146.2)
-
Step 950
950
#1F2A20
oklch(27.1% 0.024 147.3)
#638565 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) | #867F63 | 0.050 |
| Deuteranopia (no green cones) | #817B67 | 0.050 |
| Tritanopia (no blue cones) | #5F837C | 0.037 |
| Achromatopsia (no color) | #7D7D7D | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638565
#638565
oklch(58.2% 0.062 146.2)
- #8E6E8F
#8E6E8F
oklch(58.1% 0.062 325.4)
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 #638565, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.024
- Dark Sage #598556 ΔE 0.026
- Dusty Teal #4C9085 ΔE 0.048
- Green Grey #77926F ΔE 0.048
- Military Green #667C3E ΔE 0.049
- Drab #828344 ΔE 0.053
- Swamp #698339 ΔE 0.053
- Light Forest Green #4F9153 ΔE 0.055
Use #638565 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.