#64376F
Closest named color: Dark Slate Blue (#483D8B). oklch(41.6% 0.104 319.5), rgb(100, 55, 111).
Aa
White text reads best on this color (9.06:1).
About this color
#64376F is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.104 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.069 away. White text reads best on it, at 9.06:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #64376F |
| RGB | rgb(100, 55, 111) |
| HSL | hsl(288, 34%, 33%) |
| OKLCH | oklch(41.6% 0.104 319.5) |
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 #64376F | 9.06:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #64376F | 2.31:1 | Fails | Lc 13.4 | Not readable |
| #64376F text on white | 9.06:1 | AAA | Lc 90.6 | Preferred for body text |
| #64376F text on black | 2.31:1 | Fails | Lc -11.7 | Not readable |
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 800.
-
Step 50
50
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE6F1
oklch(93.5% 0.018 320.1)
-
Step 200
200
#E3D2E7
oklch(88.4% 0.034 319.8)
-
Step 300
300
#D2B5DA
oklch(81% 0.06 318.9)
-
Step 400
400
#BB8DC7
oklch(70.7% 0.097 319.2)
-
Step 500
500
#AA6FB8
oklch(63.1% 0.124 319.8)
-
Step 600
600
#9556A4
oklch(55.6% 0.135 319.7)
-
Step 700
700
#7F468D
oklch(49.2% 0.126 319.5)
-
Step 800
800 (this color)
#64376F
oklch(41.6% 0.104 319.5)
-
Step 900
900
#54325C
oklch(37.6% 0.081 319.8)
-
Step 950
950
#311E36
oklch(27% 0.05 319.1)
#64376F 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) | #2E4671 | 0.094 |
| Deuteranopia (no green cones) | #3B4A6D | 0.083 |
| Tritanopia (no blue cones) | #643F4E | 0.066 |
| Achromatopsia (no color) | #494949 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64376F
#64376F
oklch(41.6% 0.104 319.5)
- #2A591D
#2A591D
oklch(41.6% 0.104 139.5)
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 #64376F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.069
- Rebecca Purple #663399 ΔE 0.071
- Brownish Purple #76424E ΔE 0.080
- Twilight #4E518B ΔE 0.080
- Dusk #4E5481 ΔE 0.083
- Blueberry #464196 ΔE 0.084
- Purple Brown #673A3F ΔE 0.084
- Grape Purple #5D1451 ΔE 0.085
Use #64376F 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.