#5A1F79
Closest named color: Indigo (#4B0082). oklch(37.5% 0.149 311.2), rgb(90, 31, 121).
Aa
White text reads best on this color (11.01:1).
About this color
#5A1F79 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.149 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.055 away. White text reads best on it, at 11.01:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.90:1 |
| White text | 11.01:1 |
Values
| HEX | #5A1F79 |
| RGB | rgb(90, 31, 121) |
| HSL | hsl(279, 59%, 30%) |
| OKLCH | oklch(37.5% 0.149 311.2) |
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 #5A1F79 | 11.01:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #5A1F79 | 1.90:1 | Fails | Lc 9.2 | Not readable |
| #5A1F79 text on white | 11.01:1 | AAA | Lc 94.7 | Preferred for body text |
| #5A1F79 text on black | 1.90:1 | Fails | Lc -7.9 | 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 900.
-
Step 50
50
#F9F3FD
oklch(97.2% 0.015 312.2)
-
Step 100
100
#F1E4FA
oklch(93.6% 0.032 311.7)
-
Step 200
200
#E7CEF8
oklch(88.5% 0.063 311.6)
-
Step 300
300
#D8ACF6
oklch(80.9% 0.112 311.1)
-
Step 400
400
#C47CF1
oklch(70.8% 0.178 311)
-
Step 500
500
#B552EB
oklch(63% 0.228 311.3)
-
Step 600
600
#A12BDA
oklch(55.6% 0.248 311.2)
-
Step 700
700
#8A19BD
oklch(49.1% 0.231 311.3)
-
Step 800
800
#701B99
oklch(42.8% 0.191 311.2)
-
Step 900
900 (this color)
#5A1F79
oklch(37.5% 0.149 311.2)
-
Step 950
950
#351447
oklch(26.9% 0.095 311.5)
#5A1F79 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) | #00397C | 0.128 |
| Deuteranopia (no green cones) | #113D77 | 0.123 |
| Tritanopia (no blue cones) | #56334A | 0.100 |
| Achromatopsia (no color) | #3C3C3C | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A1F79
#5A1F79
oklch(37.5% 0.149 311.2)
- #2C4B00
#2C4B00
oklch(37.4% 0.103 131.3)
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 #5A1F79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.055
- Royal Purple #4B006E ΔE 0.058
- Rebecca Purple #663399 ΔE 0.069
- Grape Purple #5D1451 ΔE 0.070
- Dark Slate Blue #483D8B ΔE 0.075
- Rich Purple #720058 ΔE 0.081
- Purple #800080 ΔE 0.081
- Plum Purple #4E0550 ΔE 0.084
Use #5A1F79 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.