#5B2973
Closest named color: Grape Purple (#5D1451). oklch(38.5% 0.128 313.1), rgb(91, 41, 115).
Aa
White text reads best on this color (10.45:1).
About this color
#5B2973 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.128 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.066 away. White text reads best on it, at 10.45:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.00:1 |
| White text | 10.45:1 |
Values
| HEX | #5B2973 |
| RGB | rgb(91, 41, 115) |
| HSL | hsl(281, 47%, 31%) |
| OKLCH | oklch(38.5% 0.128 313.1) |
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 #5B2973 | 10.45:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #5B2973 | 2.00:1 | Fails | Lc 10.2 | Not readable |
| #5B2973 text on white | 10.45:1 | AAA | Lc 93.8 | Preferred for body text |
| #5B2973 text on black | 2.00:1 | Fails | Lc -8.8 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#F0E5F7
oklch(93.6% 0.027 312.6)
-
Step 200
200
#E6CFF3
oklch(88.5% 0.055 313.4)
-
Step 300
300
#D7AFED
oklch(81% 0.096 313.4)
-
Step 400
400
#C281E4
oklch(70.7% 0.154 313.2)
-
Step 500
500
#B25DDC
oklch(63.1% 0.196 313)
-
Step 600
600
#9E3DC9
oklch(55.6% 0.214 313.4)
-
Step 700
700
#872EAE
oklch(49.2% 0.198 313.3)
-
Step 800
800
#6D288D
oklch(42.7% 0.164 312.9)
-
Step 900
900 (this color)
#5B2973
oklch(38.5% 0.128 313.1)
-
Step 950
950
#341842
oklch(27% 0.081 313)
#5B2973 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) | #0D3D75 | 0.117 |
| Deuteranopia (no green cones) | #254171 | 0.103 |
| Tritanopia (no blue cones) | #59374A | 0.086 |
| Achromatopsia (no color) | #3F3F3F | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2973
#5B2973
oklch(38.5% 0.128 313.1)
- #2B4F00
#2B4F00
oklch(38.5% 0.109 132.9)
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 #5B2973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.066
- Rebecca Purple #663399 ΔE 0.068
- Royal Purple #4B006E ΔE 0.074
- Indigo #4B0082 ΔE 0.075
- Rich Purple #720058 ΔE 0.078
- Blueberry #464196 ΔE 0.084
- Velvet #750851 ΔE 0.085
Use #5B2973 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.