#641F77
Closest named color: Purple (#800080). oklch(38.8% 0.15 318), rgb(100, 31, 119).
Aa
White text reads best on this color (10.47:1).
About this color
#641F77 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.150 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.062 away. White text reads best on it, at 10.47:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 2.00:1 |
| White text | 10.47:1 |
Values
| HEX | #641F77 |
| RGB | rgb(100, 31, 119) |
| HSL | hsl(287, 59%, 29%) |
| OKLCH | oklch(38.8% 0.15 318) |
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 #641F77 | 10.47:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #641F77 | 2.00:1 | Fails | Lc 10.5 | Not readable |
| #641F77 text on white | 10.47:1 | AAA | Lc 93.5 | Preferred for body text |
| #641F77 text on black | 2.00:1 | Fails | Lc -9.0 | 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
#FAF2FC
oklch(97% 0.016 319.4)
-
Step 100
100
#F3E3F8
oklch(93.5% 0.033 318.1)
-
Step 200
200
#EBCDF5
oklch(88.6% 0.063 317.6)
-
Step 300
300
#DFA9F0
oklch(80.8% 0.113 317.9)
-
Step 400
400
#CE77E8
oklch(70.6% 0.181 318)
-
Step 500
500
#C04CE1
oklch(63.1% 0.23 317.9)
-
Step 600
600
#AC20CF
oklch(55.7% 0.251 318)
-
Step 700
700
#930AB3
oklch(49.1% 0.233 317.9)
-
Step 800
800
#781291
oklch(42.7% 0.194 318.1)
-
Step 900
900 (this color)
#641F77
oklch(38.8% 0.15 318)
-
Step 950
950
#391244
oklch(27% 0.096 318)
#641F77 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) | #003B7A | 0.146 |
| Deuteranopia (no green cones) | #234175 | 0.128 |
| Tritanopia (no blue cones) | #633049 | 0.094 |
| Achromatopsia (no color) | #3F3F3F | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641F77
#641F77
oklch(38.8% 0.15 318)
- #1D5200
#1D5200
oklch(38.7% 0.12 138.1)
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 #641F77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.062
- Rich Purple #720058 ΔE 0.066
- Rebecca Purple #663399 ΔE 0.066
- Grape Purple #5D1451 ΔE 0.067
- Royal Purple #4B006E ΔE 0.074
- Indigo #4B0082 ΔE 0.074
- Velvet #750851 ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.084
Use #641F77 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.