#53188C
Closest named color: Indigo (#4B0082). oklch(37.5% 0.174 300.9), rgb(83, 24, 140).
Aa
White text reads best on this color (11.18:1).
About this color
#53188C is a dark, vivid purple. In OKLCH its lightness is 37%, its chroma 0.174 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.036 away. White text reads best on it, at 11.18:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | vivid (0.174) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.87:1 |
| White text | 11.18:1 |
Values
| HEX | #53188C |
| RGB | rgb(83, 24, 140) |
| HSL | hsl(271, 71%, 32%) |
| OKLCH | oklch(37.5% 0.174 300.9) |
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 #53188C | 11.18:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #53188C | 1.87:1 | Fails | Lc 9.2 | Not readable |
| #53188C text on white | 11.18:1 | AAA | Lc 94.7 | Preferred for body text |
| #53188C text on black | 1.87:1 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EEE5FF
oklch(93.7% 0.036 301.4)
-
Step 200
200
#E0D0FF
oklch(88.6% 0.066 300.6)
-
Step 300
300
#CDAFFF
oklch(80.9% 0.115 301.1)
-
Step 400
400
#B581FF
oklch(70.8% 0.182 300.9)
-
Step 500
500
#A457FF
oklch(63.1% 0.238 300.8)
-
Step 600
600
#950DFD
oklch(55.6% 0.291 300.8)
-
Step 700
700
#7E00D8
oklch(49% 0.26 300.9)
-
Step 800
800
#6705B2
oklch(42.6% 0.224 300.8)
-
Step 900
900 (this color)
#53188C
oklch(37.5% 0.174 300.9)
-
Step 950
950
#311252
oklch(27% 0.11 301.4)
#53188C 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) | #003B8F | 0.117 |
| Deuteranopia (no green cones) | #003A8A | 0.117 |
| Tritanopia (no blue cones) | #463953 | 0.128 |
| Achromatopsia (no color) | #3B3B3B | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #53188C
#53188C
oklch(37.5% 0.174 300.9)
- #3A4800
#3A4800
oklch(37.6% 0.091 121.4)
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 #53188C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.036
- Chrysanthemum #560BAD ΔE 0.055
- Imperial Purple #480CA8 ΔE 0.055
- Royal Purple #4B006E ΔE 0.062
- Rebecca Purple #663399 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.074
- Indigo Blue #3A18B1 ΔE 0.083
- Blueberry #464196 ΔE 0.084
Use #53188C 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.