#64477C
Closest named color: Twilight (#4E518B). oklch(45.2% 0.09 308.4), rgb(100, 71, 124).
Aa
White text reads best on this color (7.68:1).
About this color
#64477C is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.090 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.046 away. White text reads best on it, at 7.68:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.73:1 |
| White text | 7.68:1 |
Values
| HEX | #64477C |
| RGB | rgb(100, 71, 124) |
| HSL | hsl(273, 27%, 38%) |
| OKLCH | oklch(45.2% 0.09 308.4) |
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 #64477C | 7.68:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #64477C | 2.73:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #64477C text on white | 7.68:1 | AAA | Lc 86.6 | Fine for body text |
| #64477C text on black | 2.73:1 | Fails | Lc -15.5 | 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 800.
-
Step 50
50
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#DED4E8
oklch(88.4% 0.029 308.1)
-
Step 300
300
#CAB8DB
oklch(80.9% 0.052 308.3)
-
Step 400
400
#AF93C9
oklch(70.7% 0.083 308)
-
Step 500
500
#9C77BB
oklch(63.1% 0.107 308.5)
-
Step 600
600
#875FA7
oklch(55.7% 0.116 308.6)
-
Step 700
700
#724E90
oklch(49.1% 0.109 308)
-
Step 800
800 (this color)
#64477C
oklch(45.2% 0.09 308.4)
-
Step 900
900
#4C375E
oklch(37.7% 0.069 308.1)
-
Step 950
950
#2D2037
oklch(27% 0.045 309.5)
#64477C 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) | #3B527E | 0.067 |
| Deuteranopia (no green cones) | #42547B | 0.062 |
| Tritanopia (no blue cones) | #614F5B | 0.066 |
| Achromatopsia (no color) | #535353 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64477C
#64477C
oklch(45.2% 0.09 308.4)
- #475F24
#475F24
oklch(45.2% 0.09 128.1)
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 #64477C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.046
- Dusk #4E5481 ΔE 0.047
- Dusty Grape #545775 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.066
- Light Eggplant #894585 ΔE 0.070
- Blueberry #464196 ΔE 0.072
- Rebecca Purple #663399 ΔE 0.072
- YInMn Blue #415A77 ΔE 0.075
Use #64477C 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.