#503E55
Closest named color: Charcoal Grey (#3C4142). oklch(39.2% 0.045 318.8), rgb(80, 62, 85).
Aa
White text reads best on this color (9.71:1).
About this color
#503E55 is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.045 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.052 away. White text reads best on it, at 9.71:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.16:1 |
| White text | 9.71:1 |
Values
| HEX | #503E55 |
| RGB | rgb(80, 62, 85) |
| HSL | hsl(287, 16%, 29%) |
| OKLCH | oklch(39.2% 0.045 318.8) |
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 #503E55 | 9.71:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #503E55 | 2.16:1 | Fails | Lc 11.4 | Not readable |
| #503E55 text on white | 9.71:1 | AAA | Lc 92.5 | Preferred for body text |
| #503E55 text on black | 2.16:1 | Fails | Lc -9.9 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EDE8EE
oklch(93.7% 0.01 320.5)
-
Step 200
200
#DFD5E1
oklch(88.5% 0.019 320.6)
-
Step 300
300
#CABACF
oklch(80.9% 0.034 318.1)
-
Step 400
400
#AF96B6
oklch(70.6% 0.054 318.8)
-
Step 500
500
#9C7CA4
oklch(63.1% 0.069 319.5)
-
Step 600
600
#86658F
oklch(55.5% 0.074 318.9)
-
Step 700
700
#72547A
oklch(49.2% 0.069 319.1)
-
Step 800
800
#5D4563
oklch(42.8% 0.057 319.5)
-
Step 900
900 (this color)
#503E55
oklch(39.2% 0.045 318.8)
-
Step 950
950
#2C222F
oklch(26.9% 0.028 318.3)
#503E55 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) | #3B4356 | 0.037 |
| Deuteranopia (no green cones) | #3F4554 | 0.035 |
| Tritanopia (no blue cones) | #504046 | 0.028 |
| Achromatopsia (no color) | #444444 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503E55
#503E55
oklch(39.2% 0.045 318.8)
- #394C34
#394C34
oklch(39.3% 0.046 139.2)
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 #503E55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.052
- Purple Brown #673A3F ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.061
- Onyx #343A40 ΔE 0.063
- Charcoal #264653 ΔE 0.066
- Dark Slate Gray #2F4F4F ΔE 0.073
- Brownish Purple #76424E ΔE 0.076
- Dark Blue Grey #1F3B4D ΔE 0.079
Use #503E55 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.