#642877
Closest named color: Rebecca Purple (#663399). oklch(39.9% 0.138 317.1), rgb(100, 40, 119).
Aa
White text reads best on this color (9.94:1).
About this color
#642877 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.138 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.059 away. White text reads best on it, at 9.94:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.11:1 |
| White text | 9.94:1 |
Values
| HEX | #642877 |
| RGB | rgb(100, 40, 119) |
| HSL | hsl(286, 50%, 31%) |
| OKLCH | oklch(39.9% 0.138 317.1) |
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 #642877 | 9.94:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #642877 | 2.11:1 | Fails | Lc 11.5 | Not readable |
| #642877 text on white | 9.94:1 | AAA | Lc 92.5 | Preferred for body text |
| #642877 text on black | 2.11:1 | Fails | Lc -10.0 | 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
#F9F3FC
oklch(97.1% 0.013 314.8)
-
Step 100
100
#F2E4F7
oklch(93.6% 0.029 317.2)
-
Step 200
200
#E9CEF3
oklch(88.5% 0.058 316.9)
-
Step 300
300
#DCACED
oklch(80.9% 0.103 317.1)
-
Step 400
400
#CA7CE4
oklch(70.7% 0.166 317.3)
-
Step 500
500
#BB55DB
oklch(63.1% 0.21 317.3)
-
Step 600
600
#A631C9
oklch(55.6% 0.23 317)
-
Step 700
700
#8E21AE
oklch(49.1% 0.214 316.9)
-
Step 800
800
#741F8D
oklch(42.8% 0.178 317.1)
-
Step 900
900 (this color)
#642877
oklch(39.9% 0.138 317.1)
-
Step 950
950
#371542
oklch(27% 0.088 317.1)
#642877 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) | #0D3F79 | 0.133 |
| Deuteranopia (no green cones) | #2A4575 | 0.115 |
| Tritanopia (no blue cones) | #63364C | 0.087 |
| Achromatopsia (no color) | #434343 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642877
#642877
oklch(39.9% 0.138 317.1)
- #225500
#225500
oklch(39.8% 0.121 137.1)
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 #642877, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.059
- Purple #800080 ΔE 0.068
- Rich Purple #720058 ΔE 0.072
- Grape Purple #5D1451 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.073
- Velvet #750851 ΔE 0.079
- Indigo #4B0082 ΔE 0.084
- Royal Purple #4B006E ΔE 0.085
Use #642877 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.