#64648B
Closest named color: Dusky Blue (#475F94). oklch(51.9% 0.061 284.1), rgb(100, 100, 139).
Aa
White text reads best on this color (5.61:1).
About this color
#64648B is a medium-dark, muted purple. In OKLCH its lightness is 52%, its chroma 0.061 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.047 away. White text reads best on it, at 5.61:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.73:1 |
| White text | 5.61:1 |
Values
| HEX | #64648B |
| RGB | rgb(100, 100, 139) |
| HSL | hsl(240, 16%, 47%) |
| OKLCH | oklch(51.9% 0.061 284.1) |
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 #64648B | 5.61:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #64648B | 3.73:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #64648B text on white | 5.61:1 | AA | Lc 78.1 | Fine for body text |
| #64648B text on black | 3.73:1 | AA large text | Lc -23.7 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D7D8E4
oklch(88.5% 0.016 282.2)
-
Step 300
300
#BEBED4
oklch(80.8% 0.031 285.7)
-
Step 400
400
#9C9DBE
oklch(70.6% 0.048 283.7)
-
Step 500
500
#8585AD
oklch(63.1% 0.06 284.6)
-
Step 600
600
#6E6E99
oklch(55.5% 0.066 284)
-
Step 700
700 (this color)
#64648B
oklch(51.9% 0.061 284.1)
-
Step 800
800
#4B4B6A
oklch(42.6% 0.051 284)
-
Step 900
900
#3F3F56
oklch(37.7% 0.039 284.4)
-
Step 950
950
#252532
oklch(27% 0.024 284.7)
#64648B 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) | #59698D | 0.020 |
| Deuteranopia (no green cones) | #58668A | 0.018 |
| Tritanopia (no blue cones) | #5B6B72 | 0.053 |
| Achromatopsia (no color) | #676767 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64648B
#64648B
oklch(51.9% 0.061 284.1)
- #6E6B40
#6E6B40
oklch(52% 0.062 104.9)
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 #64648B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.047
- Metallic Blue #4F738E ΔE 0.048
- Dusty Purple #825F87 ΔE 0.049
- Muted Purple #805B87 ΔE 0.049
- Slate #516572 ΔE 0.052
- Denim #3B638C ΔE 0.054
- Dusty Grape #545775 ΔE 0.054
- Dull Blue #49759C ΔE 0.055
Use #64648B 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.