#581987
Closest named color: Indigo (#4B0082). oklch(37.8% 0.169 305.3), rgb(88, 25, 135).
Aa
White text reads best on this color (11.03:1).
About this color
#581987 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.169 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.042 away. White text reads best on it, at 11.03:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.90:1 |
| White text | 11.03:1 |
Values
| HEX | #581987 |
| RGB | rgb(88, 25, 135) |
| HSL | hsl(274, 69%, 31%) |
| OKLCH | oklch(37.8% 0.169 305.3) |
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 #581987 | 11.03:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #581987 | 1.90:1 | Fails | Lc 9.5 | Not readable |
| #581987 text on white | 11.03:1 | AAA | Lc 94.4 | Preferred for body text |
| #581987 text on black | 1.90:1 | Fails | Lc -8.1 | 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
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#EFE4FE
oklch(93.5% 0.037 304.8)
-
Step 200
200
#E4CEFF
oklch(88.5% 0.07 305.4)
-
Step 300
300
#D3ACFF
oklch(80.8% 0.121 305.4)
-
Step 400
400
#BE7BFF
oklch(70.7% 0.193 305.4)
-
Step 500
500
#AF4DFF
oklch(63.1% 0.252 305.4)
-
Step 600
600
#9C10F2
oklch(55.6% 0.282 305.2)
-
Step 700
700
#8500CF
oklch(49.1% 0.254 305.5)
-
Step 800
800
#6D07AA
oklch(42.8% 0.217 305.6)
-
Step 900
900 (this color)
#581987
oklch(37.8% 0.169 305.3)
-
Step 950
950
#33124F
oklch(27% 0.107 304.9)
#581987 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) | #003A8A | 0.125 |
| Deuteranopia (no green cones) | #003C85 | 0.127 |
| Tritanopia (no blue cones) | #4F3650 | 0.120 |
| Achromatopsia (no color) | #3C3C3C | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581987
#581987
oklch(37.8% 0.169 305.3)
- #364A00
#364A00
oklch(37.8% 0.095 125.3)
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 #581987, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.042
- Royal Purple #4B006E ΔE 0.060
- Rebecca Purple #663399 ΔE 0.063
- Chrysanthemum #560BAD ΔE 0.064
- Imperial Purple #480CA8 ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.075
- Blueberry #464196 ΔE 0.087
- Purple #800080 ΔE 0.088
Use #581987 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.