#6440B5
Closest named color: Bluey Purple (#6241C7). oklch(47.8% 0.176 292.7), rgb(100, 64, 181).
Aa
White text reads best on this color (7.13:1).
About this color
#6440B5 is a medium-dark, vivid purple. In OKLCH its lightness is 48%, its chroma 0.176 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.029 away. White text reads best on it, at 7.13:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 2.94:1 |
| White text | 7.13:1 |
Values
| HEX | #6440B5 |
| RGB | rgb(100, 64, 181) |
| HSL | hsl(258, 48%, 48%) |
| OKLCH | oklch(47.8% 0.176 292.7) |
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 #6440B5 | 7.13:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #6440B5 | 2.94:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #6440B5 text on white | 7.13:1 | AAA | Lc 84.3 | Fine for body text |
| #6440B5 text on black | 2.94:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F6
oklch(88.5% 0.047 292.2)
-
Step 300
300
#C2B7F3
oklch(80.9% 0.084 292.8)
-
Step 400
400
#A48FEE
oklch(70.7% 0.137 292.7)
-
Step 500
500
#8F70E8
oklch(63.1% 0.174 292.6)
-
Step 600
600
#7A55D6
oklch(55.6% 0.189 292.4)
-
Step 700
700 (this color)
#6440B5
oklch(47.8% 0.176 292.7)
-
Step 800
800
#543996
oklch(42.7% 0.146 292.5)
-
Step 900
900
#453277
oklch(37.6% 0.113 292.8)
-
Step 950
950
#281E46
oklch(27% 0.072 292.4)
#6440B5 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) | #0059B9 | 0.106 |
| Deuteranopia (no green cones) | #0056B3 | 0.106 |
| Tritanopia (no blue cones) | #4D5C75 | 0.140 |
| Achromatopsia (no color) | #585858 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6440B5
#6440B5
oklch(47.8% 0.176 292.7)
- #5E6300
#5E6300
oklch(47.9% 0.107 113.2)
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 #6440B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.029
- Blue With A Hint Of Purple #533CC6 ΔE 0.042
- Blurple #5539CC ΔE 0.048
- Rebecca Purple #663399 ΔE 0.052
- Iris #6258C4 ΔE 0.057
- Purple Blue #5D21D0 ΔE 0.066
- Slate Blue #6A5ACD ΔE 0.069
- Blueberry #464196 ΔE 0.071
Use #6440B5 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.