#503F4B
Closest named color: Charcoal Grey (#3C4142). oklch(39% 0.03 337), rgb(80, 63, 75).
Aa
White text reads best on this color (9.75:1).
About this color
#503F4B is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.030 and its hue 337°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.040 away. White text reads best on it, at 9.75:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.030) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.15:1 |
| White text | 9.75:1 |
Values
| HEX | #503F4B |
| RGB | rgb(80, 63, 75) |
| HSL | hsl(318, 12%, 28%) |
| OKLCH | oklch(39% 0.03 337) |
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 #503F4B | 9.75:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #503F4B | 2.15:1 | Fails | Lc 11.3 | Not readable |
| #503F4B text on white | 9.75:1 | AAA | Lc 92.6 | Preferred for body text |
| #503F4B text on black | 2.15:1 | Fails | Lc -9.8 | 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
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EB
oklch(93.6% 0.007 340.4)
-
Step 200
200
#DFD6DC
oklch(88.5% 0.013 337.6)
-
Step 300
300
#CBBBC6
oklch(80.9% 0.023 336.9)
-
Step 400
400
#B098A9
oklch(70.6% 0.037 336.5)
-
Step 500
500
#9C7F94
oklch(63% 0.046 336.1)
-
Step 600
600
#87687E
oklch(55.5% 0.051 337.1)
-
Step 700
700
#72576A
oklch(49.1% 0.045 337.4)
-
Step 800
800
#5D4757
oklch(42.7% 0.039 336.3)
-
Step 900
900 (this color)
#503F4B
oklch(39% 0.03 337)
-
Step 950
950
#2D232A
oklch(27.1% 0.019 337.2)
#503F4B 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) | #3F424C | 0.029 |
| Deuteranopia (no green cones) | #43454A | 0.028 |
| Tritanopia (no blue cones) | #523F43 | 0.014 |
| Achromatopsia (no color) | #444444 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503F4B
#503F4B
oklch(39% 0.03 337)
- #384A3F
#384A3F
oklch(39% 0.029 157.9)
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 #503F4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.040
- Purple Brown #673A3F ΔE 0.046
- Onyx #343A40 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.062
- Charcoal #264653 ΔE 0.063
- Dark Slate Gray #2F4F4F ΔE 0.065
- Brownish Purple #76424E ΔE 0.074
- Dark Blue Grey #1F3B4D ΔE 0.078
Use #503F4B 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.