#521739
Closest named color: Grape Purple (#5D1451). oklch(31.3% 0.097 348.5), rgb(82, 23, 57).
Aa
White text reads best on this color (13.63:1).
About this color
#521739 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.097 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.049 away. White text reads best on it, at 13.63:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.54:1 |
| White text | 13.63:1 |
Values
| HEX | #521739 |
| RGB | rgb(82, 23, 57) |
| HSL | hsl(325, 56%, 21%) |
| OKLCH | oklch(31.3% 0.097 348.5) |
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 #521739 | 13.63:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #521739 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #521739 text on white | 13.63:1 | AAA | Lc 99.6 | Preferred for body text |
| #521739 text on black | 1.54:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#FEF2F7
oklch(97.2% 0.014 350.1)
-
Step 100
100
#FCE1ED
oklch(93.5% 0.033 349.1)
-
Step 200
200
#FAC9E0
oklch(88.5% 0.063 348.6)
-
Step 300
300
#F8A2CD
oklch(81% 0.114 348.6)
-
Step 400
400
#EF69B3
oklch(70.6% 0.183 348.5)
-
Step 500
500
#E632A0
oklch(63.1% 0.233 348.8)
-
Step 600
600
#CB0089
oklch(55.7% 0.233 348.8)
-
Step 700
700
#AB0074
oklch(49% 0.206 348.3)
-
Step 800
800
#8E005F
oklch(42.8% 0.179 348.6)
-
Step 900
900
#76074F
oklch(37.8% 0.153 348.5)
-
Step 950
950 (this color)
#521739
oklch(31.3% 0.097 348.5)
#521739 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) | #1F273A | 0.106 |
| Deuteranopia (no green cones) | #303238 | 0.095 |
| Tritanopia (no blue cones) | #581525 | 0.038 |
| Achromatopsia (no color) | #2E2E2E | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #521739
#521739
oklch(31.3% 0.097 348.5)
- #003B2B
#003B2B
oklch(31.3% 0.063 168.3)
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 #521739, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.049
- Burgundy #610023 ΔE 0.050
- Deep Violet #490648 ΔE 0.052
- Eggplant Purple #430541 ΔE 0.057
- Plum Purple #4E0550 ΔE 0.057
- Aubergine #3D0734 ΔE 0.063
- Dark Plum #3F012C ΔE 0.067
- Claret #680018 ΔE 0.070
Use #521739 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.