#5137A1
Closest named color: Blueberry (#464196). oklch(43% 0.163 289), rgb(81, 55, 161).
Aa
White text reads best on this color (8.71:1).
About this color
#5137A1 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.163 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.033 away. White text reads best on it, at 8.71:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.41:1 |
| White text | 8.71:1 |
Values
| HEX | #5137A1 |
| RGB | rgb(81, 55, 161) |
| HSL | hsl(255, 49%, 42%) |
| OKLCH | oklch(43% 0.163 289) |
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 #5137A1 | 8.71:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #5137A1 | 2.41:1 | Fails | Lc 14.6 | Not readable |
| #5137A1 text on white | 8.71:1 | AAA | Lc 89.4 | Fine for body text |
| #5137A1 text on black | 2.41:1 | Fails | Lc -12.9 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D7D4FB
oklch(88.5% 0.053 288.8)
-
Step 300
300
#BEB7FB
oklch(80.9% 0.095 288.8)
-
Step 400
400
#9F8EF8
oklch(70.6% 0.152 289.3)
-
Step 500
500
#896EF5
oklch(63.1% 0.194 288.8)
-
Step 600
600
#7551E4
oklch(55.6% 0.211 288.9)
-
Step 700
700
#6340C6
oklch(49.1% 0.197 289.1)
-
Step 800
800 (this color)
#5137A1
oklch(43% 0.163 289)
-
Step 900
900
#42317F
oklch(37.8% 0.126 288.9)
-
Step 950
950
#261D4A
oklch(26.9% 0.08 289)
#5137A1 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) | #004DA4 | 0.088 |
| Deuteranopia (no green cones) | #00489F | 0.086 |
| Tritanopia (no blue cones) | #365167 | 0.133 |
| Achromatopsia (no color) | #4B4B4B | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5137A1
#5137A1
oklch(43% 0.163 289)
- #545300
#545300
oklch(42.9% 0.093 109)
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 #5137A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.033
- Dark Slate Blue #483D8B ΔE 0.041
- Rebecca Purple #663399 ΔE 0.042
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Chrysanthemum #560BAD ΔE 0.061
- Imperial Purple #480CA8 ΔE 0.067
- Blurple #5539CC ΔE 0.069
- Sapphire #2138AB ΔE 0.071
Use #5137A1 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.