#640480
Closest named color: Indigo (#4B0082). oklch(37.6% 0.181 315.7), rgb(100, 4, 128).
Aa
White text reads best on this color (11.22:1).
About this color
#640480 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.181 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.058 away. White text reads best on it, at 11.22:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.87:1 |
| White text | 11.22:1 |
Values
| HEX | #640480 |
| RGB | rgb(100, 4, 128) |
| HSL | hsl(286, 94%, 26%) |
| OKLCH | oklch(37.6% 0.181 315.7) |
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 #640480 | 11.22:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #640480 | 1.87:1 | Fails | Lc 9.8 | Not readable |
| #640480 text on white | 11.22:1 | AAA | Lc 94.1 | Preferred for body text |
| #640480 text on black | 1.87:1 | Fails | Lc -8.5 | 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 900.
-
Step 50
50
#FAF2FE
oklch(97.1% 0.018 314.7)
-
Step 100
100
#F4E2FC
oklch(93.5% 0.04 315.6)
-
Step 200
200
#EDCBFC
oklch(88.6% 0.075 315.5)
-
Step 300
300
#E2A5FC
oklch(80.9% 0.135 315.4)
-
Step 400
400
#D36CFA
oklch(70.7% 0.218 315.8)
-
Step 500
500
#C631F7
oklch(63% 0.278 315.6)
-
Step 600
600
#AD00DB
oklch(55.7% 0.273 315.8)
-
Step 700
700
#9200B9
oklch(49.1% 0.241 315.9)
-
Step 800
800
#78009A
oklch(42.7% 0.21 315.5)
-
Step 900
900 (this color)
#640480
oklch(37.6% 0.181 315.7)
-
Step 950
950
#3B0A4B
oklch(27% 0.115 316)
#640480 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) | #003683 | 0.158 |
| Deuteranopia (no green cones) | #003D7E | 0.161 |
| Tritanopia (no blue cones) | #622A49 | 0.116 |
| Achromatopsia (no color) | #3B3B3B | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #640480
#640480
oklch(37.6% 0.181 315.7)
- #234E00
#234E00
oklch(37.8% 0.112 135.7)
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 #640480, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.058
- Purple #800080 ΔE 0.062
- Royal Purple #4B006E ΔE 0.063
- Rebecca Purple #663399 ΔE 0.077
- Rich Purple #720058 ΔE 0.079
- Grape Purple #5D1451 ΔE 0.083
- Chrysanthemum #560BAD ΔE 0.085
- Dark Magenta #8B008B ΔE 0.086
Use #640480 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.