#6151A4
Closest named color: Twilight (#4E518B). oklch(49.2% 0.129 289.7), rgb(97, 81, 164).
Aa
White text reads best on this color (6.51:1).
About this color
#6151A4 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.129 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.051 away. White text reads best on it, at 6.51:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.22:1 |
| White text | 6.51:1 |
Values
| HEX | #6151A4 |
| RGB | rgb(97, 81, 164) |
| HSL | hsl(252, 34%, 48%) |
| OKLCH | oklch(49.2% 0.129 289.7) |
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 #6151A4 | 6.51:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #6151A4 | 3.22:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #6151A4 text on white | 6.51:1 | AA | Lc 82.1 | Fine for body text |
| #6151A4 text on black | 3.22:1 | AA large text | Lc -19.8 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EF
oklch(88.5% 0.034 289.4)
-
Step 300
300
#BFBAE7
oklch(80.8% 0.063 290)
-
Step 400
400
#9F96DB
oklch(70.7% 0.1 289.6)
-
Step 500
500
#897BD1
oklch(63.2% 0.127 289.7)
-
Step 600
600
#7362BE
oklch(55.6% 0.139 289.6)
-
Step 700
700 (this color)
#6151A4
oklch(49.2% 0.129 289.7)
-
Step 800
800
#4F4385
oklch(42.8% 0.106 289.5)
-
Step 900
900
#41396A
oklch(37.7% 0.082 289.4)
-
Step 950
950
#26223E
oklch(27.1% 0.051 289.1)
#6151A4 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) | #2F5FA7 | 0.069 |
| Deuteranopia (no green cones) | #305CA2 | 0.067 |
| Tritanopia (no blue cones) | #4F6273 | 0.106 |
| Achromatopsia (no color) | #5E5E5E | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6151A4
#6151A4
oklch(49.2% 0.129 289.7)
- #656500
#656500
oklch(49.1% 0.107 109.8)
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 #6151A4, closest first.
No curated palette has a color within ΔE 0.04 of #6151A4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.051
- Iris #6258C4 ΔE 0.052
- Dusky Blue #475F94 ΔE 0.060
- Blueberry #464196 ΔE 0.066
- Dusk #4E5481 ΔE 0.067
- Denim Blue #3B5B92 ΔE 0.067
- Slate Blue #6A5ACD ΔE 0.068
- Bluey Purple #6241C7 ΔE 0.068
Use #6151A4 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.