#636480
Closest named color: Slate (#516572). oklch(51.3% 0.044 283.1), rgb(99, 100, 128).
Aa
White text reads best on this color (5.72:1).
About this color
#636480 is a medium-dark, muted purple. In OKLCH its lightness is 51%, its chroma 0.044 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.037 away. White text reads best on it, at 5.72:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.66:1 |
| White text | 5.72:1 |
Values
| HEX | #636480 |
| RGB | rgb(99, 100, 128) |
| HSL | hsl(238, 13%, 45%) |
| OKLCH | oklch(51.3% 0.044 283.1) |
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 #636480 | 5.72:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #636480 | 3.66:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #636480 text on white | 5.72:1 | AA | Lc 78.7 | Fine for body text |
| #636480 text on black | 3.66:1 | AA large text | Lc -23.1 | 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 700.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D8D8E1
oklch(88.5% 0.012 286.1)
-
Step 300
300
#BEBFCE
oklch(80.8% 0.021 282.9)
-
Step 400
400
#9D9EB6
oklch(70.6% 0.035 283.6)
-
Step 500
500
#8587A4
oklch(63.2% 0.043 282)
-
Step 600
600
#6F708F
oklch(55.6% 0.048 283.3)
-
Step 700
700 (this color)
#636480
oklch(51.3% 0.044 283.1)
-
Step 800
800
#4C4D63
oklch(42.8% 0.036 282.7)
-
Step 900
900
#3F4051
oklch(37.7% 0.029 282.3)
-
Step 950
950
#25252F
oklch(26.9% 0.018 285.1)
#636480 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) | #5D6781 | 0.011 |
| Deuteranopia (no green cones) | #5C657F | 0.011 |
| Tritanopia (no blue cones) | #5D696D | 0.040 |
| Achromatopsia (no color) | #666666 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #636480
#636480
oklch(51.3% 0.044 283.1)
- #6B684B
#6B684B
oklch(51.2% 0.043 102.8)
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 #636480, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.037
- Dim Gray #696969 ΔE 0.045
- Metallic Blue #4F738E ΔE 0.047
- Dusty Grape #545775 ΔE 0.047
- Dusty Purple #825F87 ΔE 0.054
- Muted Purple #805B87 ΔE 0.055
- Denim #3B638C ΔE 0.055
- Dusky Blue #475F94 ΔE 0.055
Use #636480 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.