#64479B
Closest named color: Rebecca Purple (#663399). oklch(47.1% 0.132 297), rgb(100, 71, 155).
Aa
White text reads best on this color (7.20:1).
About this color
#64479B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.132 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.045 away. White text reads best on it, at 7.20:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #64479B |
| RGB | rgb(100, 71, 155) |
| HSL | hsl(261, 37%, 44%) |
| OKLCH | oklch(47.1% 0.132 297) |
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 #64479B | 7.20:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #64479B | 2.91:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #64479B text on white | 7.20:1 | AAA | Lc 84.7 | Fine for body text |
| #64479B text on black | 2.91:1 | Fails | Lc -17.3 | 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 700.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE8F5
oklch(93.7% 0.018 296.6)
-
Step 200
200
#DBD5EE
oklch(88.5% 0.035 296.7)
-
Step 300
300
#C4B9E6
oklch(81% 0.064 296.2)
-
Step 400
400
#A793D9
oklch(70.7% 0.102 296.8)
-
Step 500
500
#9277CE
oklch(63.1% 0.13 296.8)
-
Step 600
600
#7D5EBB
oklch(55.6% 0.142 296.9)
-
Step 700
700 (this color)
#64479B
oklch(47.1% 0.132 297)
-
Step 800
800
#563F83
oklch(42.6% 0.11 297.1)
-
Step 900
900
#473669
oklch(37.6% 0.086 297.5)
-
Step 950
950
#29203D
oklch(26.9% 0.054 296.9)
#64479B 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) | #25589E | 0.088 |
| Deuteranopia (no green cones) | #2D5699 | 0.082 |
| Tritanopia (no blue cones) | #58586A | 0.104 |
| Achromatopsia (no color) | #575757 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64479B
#64479B
oklch(47.1% 0.132 297)
- #576200
#576200
oklch(47% 0.109 117.1)
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 #64479B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.045
- Twilight #4E518B ΔE 0.052
- Blueberry #464196 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.062
- Dusk #4E5481 ΔE 0.068
- Bluey Purple #6241C7 ΔE 0.072
- Iris #6258C4 ΔE 0.073
- Dusky Blue #475F94 ΔE 0.076
Use #64479B 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.