#651FA5
Closest named color: Rebecca Purple (#663399). oklch(42.6% 0.196 301.9), rgb(101, 31, 165).
Aa
White text reads best on this color (9.15:1).
About this color
#651FA5 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.196 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.039 away. White text reads best on it, at 9.15:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.196) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #651FA5 |
| RGB | rgb(101, 31, 165) |
| HSL | hsl(271, 68%, 38%) |
| OKLCH | oklch(42.6% 0.196 301.9) |
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 #651FA5 | 9.15:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #651FA5 | 2.29:1 | Fails | Lc 14.0 | Not readable |
| #651FA5 text on white | 9.15:1 | AAA | Lc 89.9 | Fine for body text |
| #651FA5 text on black | 2.29:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EEE5FD
oklch(93.6% 0.033 302.7)
-
Step 200
200
#E0D0FD
oklch(88.5% 0.063 301.3)
-
Step 300
300
#CEAFFE
oklch(80.9% 0.114 301.9)
-
Step 400
400
#B780FE
oklch(70.8% 0.183 302.1)
-
Step 500
500
#A657FC
oklch(63.1% 0.235 302)
-
Step 600
600
#9231EB
oklch(55.5% 0.255 301.9)
-
Step 700
700
#7D20CC
oklch(49.1% 0.236 302.1)
-
Step 800
800 (this color)
#651FA5
oklch(42.6% 0.196 301.9)
-
Step 900
900
#522383
oklch(37.7% 0.152 301.8)
-
Step 950
950
#30164D
oklch(27% 0.097 302)
#651FA5 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) | #0047A9 | 0.135 |
| Deuteranopia (no green cones) | #0047A2 | 0.136 |
| Tritanopia (no blue cones) | #574463 | 0.142 |
| Achromatopsia (no color) | #484848 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #651FA5
#651FA5
oklch(42.6% 0.196 301.9)
- #465700
#465700
oklch(42.7% 0.103 121.8)
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 #651FA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.039
- Grape #7209B7 ΔE 0.039
- Chrysanthemum #560BAD ΔE 0.041
- Imperial Purple #480CA8 ΔE 0.066
- Purple Blue #5D21D0 ΔE 0.073
- Violet Blue #510AC9 ΔE 0.076
- Blue With A Hint Of Purple #533CC6 ΔE 0.080
- Bluey Purple #6241C7 ΔE 0.081
Use #651FA5 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.