#5100A5
Closest named color: Chrysanthemum (#560BAD). oklch(38.4% 0.212 294.2), rgb(81, 0, 165).
Aa
White text reads best on this color (11.09:1).
About this color
#5100A5 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.212 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Chrysanthemum (#560BAD), ΔE 0.019 away. White text reads best on it, at 11.09:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.212) |
| Temperature | in between |
| Nearest name | Chrysanthemum (#560BAD) |
| Black text | 1.89:1 |
| White text | 11.09:1 |
Values
| HEX | #5100A5 |
| RGB | rgb(81, 0, 165) |
| HSL | hsl(269, 100%, 32%) |
| OKLCH | oklch(38.4% 0.212 294.2) |
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 #5100A5 | 11.09:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #5100A5 | 1.89:1 | Fails | Lc 10.6 | Not readable |
| #5100A5 text on white | 11.09:1 | AAA | Lc 93.4 | Preferred for body text |
| #5100A5 text on black | 1.89:1 | Fails | Lc -9.1 | 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 900.
-
Step 50
50
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EBE6FF
oklch(93.6% 0.034 294.9)
-
Step 200
200
#DBD2FF
oklch(88.5% 0.062 294.3)
-
Step 300
300
#C4B3FF
oklch(80.8% 0.107 294.1)
-
Step 400
400
#A888FF
oklch(70.7% 0.17 294)
-
Step 500
500
#9662FF
oklch(63.1% 0.222 294.4)
-
Step 600
600
#852EFF
oklch(55.6% 0.275 294)
-
Step 700
700
#7300E6
oklch(49.1% 0.271 294)
-
Step 800
800
#5F00BF
oklch(42.8% 0.236 294.3)
-
Step 900
900 (this color)
#5100A5
oklch(38.4% 0.212 294.2)
-
Step 950
950
#2E0A5F
oklch(27% 0.134 294.4)
#5100A5 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) | #003DA9 | 0.116 |
| Deuteranopia (no green cones) | #0039A2 | 0.114 |
| Tritanopia (no blue cones) | #353F5F | 0.162 |
| Achromatopsia (no color) | #3C3C3C | 0.213 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5100A5
#5100A5
oklch(38.4% 0.212 294.2)
- #434800
#434800
oklch(38.4% 0.086 114.2)
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 #5100A5, closest first.
No curated palette has a color within ΔE 0.04 of #5100A5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chrysanthemum #560BAD ΔE 0.019
- Imperial Purple #480CA8 ΔE 0.021
- Indigo Blue #3A18B1 ΔE 0.054
- Indigo #4B0082 ΔE 0.061
- Violet Blue #510AC9 ΔE 0.062
- Grape #7209B7 ΔE 0.075
- Rebecca Purple #663399 ΔE 0.082
- Purple Blue #5D21D0 ΔE 0.083
Use #5100A5 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.