#503F60
Closest named color: Dark Grey Blue (#29465B). oklch(40% 0.058 307.5), rgb(80, 63, 96).
Aa
White text reads best on this color (9.45:1).
About this color
#503F60 is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.058 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.062 away. White text reads best on it, at 9.45:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.22:1 |
| White text | 9.45:1 |
Values
| HEX | #503F60 |
| RGB | rgb(80, 63, 96) |
| HSL | hsl(271, 21%, 31%) |
| OKLCH | oklch(40% 0.058 307.5) |
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 #503F60 | 9.45:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #503F60 | 2.22:1 | Fails | Lc 12.1 | Not readable |
| #503F60 text on white | 9.45:1 | AAA | Lc 91.8 | Preferred for body text |
| #503F60 text on black | 2.22:1 | Fails | Lc -10.6 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F1
oklch(93.7% 0.013 306)
-
Step 200
200
#DDD5E6
oklch(88.4% 0.025 306.9)
-
Step 300
300
#C8BAD7
oklch(81% 0.043 307.1)
-
Step 400
400
#AC95C3
oklch(70.6% 0.071 307.3)
-
Step 500
500
#987BB4
oklch(63.1% 0.089 307.3)
-
Step 600
600
#83639F
oklch(55.6% 0.097 308)
-
Step 700
700
#6F5288
oklch(49.1% 0.09 308.1)
-
Step 800
800
#5A436F
oklch(42.6% 0.076 307.5)
-
Step 900
900 (this color)
#503F60
oklch(40% 0.058 307.5)
-
Step 950
950
#2B2234
oklch(27% 0.035 307)
#503F60 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) | #394561 | 0.040 |
| Deuteranopia (no green cones) | #3C465F | 0.038 |
| Tritanopia (no blue cones) | #4E444B | 0.044 |
| Achromatopsia (no color) | #464646 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503F60
#503F60
oklch(40% 0.058 307.5)
- #3F4D2A
#3F4D2A
oklch(39.8% 0.058 126.7)
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 #503F60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.062
- Charcoal Grey #3C4142 ΔE 0.066
- Purple Brown #673A3F ΔE 0.067
- Charcoal #264653 ΔE 0.072
- Dusk #4E5481 ΔE 0.072
- Dusty Grape #545775 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.075
- Onyx #343A40 ΔE 0.076
Use #503F60 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.