#64499B
Closest named color: Rebecca Purple (#663399). oklch(47.4% 0.129 296.3), rgb(100, 73, 155).
Aa
White text reads best on this color (7.07:1).
About this color
#64499B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.129 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.049 away. White text reads best on it, at 7.07:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #64499B |
| RGB | rgb(100, 73, 155) |
| HSL | hsl(260, 36%, 45%) |
| OKLCH | oklch(47.4% 0.129 296.3) |
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 #64499B | 7.07:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #64499B | 2.96:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #64499B text on white | 7.07:1 | AAA | Lc 84.3 | Fine for body text |
| #64499B text on black | 2.96:1 | Fails | Lc -17.7 | 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
#C4B9E5
oklch(80.9% 0.062 296.4)
-
Step 400
400
#A694D8
oklch(70.8% 0.099 295.9)
-
Step 500
500
#9178CD
oklch(63.1% 0.127 296.1)
-
Step 600
600
#7C5FBA
oklch(55.6% 0.138 296.3)
-
Step 700
700 (this color)
#64499B
oklch(47.4% 0.129 296.3)
-
Step 800
800
#554082
oklch(42.6% 0.107 296.2)
-
Step 900
900
#463768
oklch(37.7% 0.083 296.3)
-
Step 950
950
#29213D
oklch(27.1% 0.052 295.9)
#64499B 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) | #29599E | 0.084 |
| Deuteranopia (no green cones) | #305799 | 0.078 |
| Tritanopia (no blue cones) | #57596B | 0.101 |
| Achromatopsia (no color) | #585858 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64499B
#64499B
oklch(47.4% 0.129 296.3)
- #596300
#596300
oklch(47.5% 0.109 116.4)
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 #64499B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.049
- Twilight #4E518B ΔE 0.050
- Blueberry #464196 ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.064
- Dusk #4E5481 ΔE 0.066
- Iris #6258C4 ΔE 0.071
- Dusky Blue #475F94 ΔE 0.072
- Bluey Purple #6241C7 ΔE 0.073
Use #64499B 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.