#5B4197
Closest named color: Rebecca Purple (#663399). oklch(44.8% 0.135 294.2), rgb(91, 65, 151).
Aa
White text reads best on this color (7.93:1).
About this color
#5B4197 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.135 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.035 away. White text reads best on it, at 7.93:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.64:1 |
| White text | 7.93:1 |
Values
| HEX | #5B4197 |
| RGB | rgb(91, 65, 151) |
| HSL | hsl(258, 40%, 42%) |
| OKLCH | oklch(44.8% 0.135 294.2) |
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 #5B4197 | 7.93:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #5B4197 | 2.64:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #5B4197 text on white | 7.93:1 | AAA | Lc 87.2 | Fine for body text |
| #5B4197 text on black | 2.64:1 | Fails | Lc -14.9 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C3B7EF
oklch(80.8% 0.079 294.4)
-
Step 400
400
#A590E7
oklch(70.6% 0.126 294)
-
Step 500
500
#9172E0
oklch(63.1% 0.161 294.3)
-
Step 600
600
#7C57CE
oklch(55.6% 0.176 294.3)
-
Step 700
700
#6947B2
oklch(49.2% 0.163 294.3)
-
Step 800
800 (this color)
#5B4197
oklch(44.8% 0.135 294.2)
-
Step 900
900
#463373
oklch(37.6% 0.106 294.4)
-
Step 950
950
#291F43
oklch(27.1% 0.065 294.4)
#5B4197 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) | #16529A | 0.088 |
| Deuteranopia (no green cones) | #1F5095 | 0.083 |
| Tritanopia (no blue cones) | #4C5365 | 0.108 |
| Achromatopsia (no color) | #515151 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B4197
#5B4197
oklch(44.8% 0.135 294.2)
- #545A00
#545A00
oklch(44.7% 0.101 114.2)
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 #5B4197, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Blueberry #464196 ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.040
- Twilight #4E518B ΔE 0.052
- Dusk #4E5481 ΔE 0.069
- Bluey Purple #6241C7 ΔE 0.077
- Blue With A Hint Of Purple #533CC6 ΔE 0.078
- Denim Blue #3B5B92 ΔE 0.080
Use #5B4197 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.