#591D7F
Closest named color: Indigo (#4B0082). oklch(37.6% 0.157 308.4), rgb(89, 29, 127).
Aa
White text reads best on this color (11.01:1).
About this color
#591D7F is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.157 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.048 away. White text reads best on it, at 11.01:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.90:1 |
| White text | 11.01:1 |
Values
| HEX | #591D7F |
| RGB | rgb(89, 29, 127) |
| HSL | hsl(277, 63%, 31%) |
| OKLCH | oklch(37.6% 0.157 308.4) |
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 #591D7F | 11.01:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #591D7F | 1.90:1 | Fails | Lc 9.3 | Not readable |
| #591D7F text on white | 11.01:1 | AAA | Lc 94.6 | Preferred for body text |
| #591D7F text on black | 1.90:1 | Fails | Lc -8.0 | 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
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#F0E4FC
oklch(93.5% 0.034 308.1)
-
Step 200
200
#E5CEFB
oklch(88.5% 0.066 308.1)
-
Step 300
300
#D6ACFB
oklch(80.9% 0.117 308.3)
-
Step 400
400
#C27AF9
oklch(70.7% 0.189 308.5)
-
Step 500
500
#B34FF5
oklch(63.1% 0.241 308.6)
-
Step 600
600
#9F24E4
oklch(55.7% 0.261 308.5)
-
Step 700
700
#880EC6
oklch(49.1% 0.243 308.5)
-
Step 800
800
#6E15A0
oklch(42.7% 0.201 308.4)
-
Step 900
900 (this color)
#591D7F
oklch(37.6% 0.157 308.4)
-
Step 950
950
#34134A
oklch(26.9% 0.099 308.7)
#591D7F 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) | #003A82 | 0.127 |
| Deuteranopia (no green cones) | #003D7D | 0.129 |
| Tritanopia (no blue cones) | #53344D | 0.107 |
| Achromatopsia (no color) | #3C3C3C | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #591D7F
#591D7F
oklch(37.6% 0.157 308.4)
- #314B00
#314B00
oklch(37.7% 0.1 128.7)
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 #591D7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.048
- Royal Purple #4B006E ΔE 0.057
- Rebecca Purple #663399 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.074
- Chrysanthemum #560BAD ΔE 0.078
- Grape Purple #5D1451 ΔE 0.081
- Imperial Purple #480CA8 ΔE 0.082
- Purple #800080 ΔE 0.083
Use #591D7F 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.