#613F57
Closest named color: Purple Brown (#673A3F). oklch(41.5% 0.059 338.1), rgb(97, 63, 87).
Aa
White text reads best on this color (8.90:1).
About this color
#613F57 is a dark, muted purple. In OKLCH its lightness is 42%, its chroma 0.059 and its hue 338°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.039 away. White text reads best on it, at 8.90:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.35:1 |
| White text | 8.90:1 |
Values
| HEX | #613F57 |
| RGB | rgb(97, 63, 87) |
| HSL | hsl(318, 21%, 31%) |
| OKLCH | oklch(41.5% 0.059 338.1) |
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 #613F57 | 8.90:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #613F57 | 2.35:1 | Fails | Lc 13.7 | Not readable |
| #613F57 text on white | 8.90:1 | AAA | Lc 90.3 | Preferred for body text |
| #613F57 text on black | 2.35:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EC
oklch(93.6% 0.011 339.3)
-
Step 200
200
#E2D4DD
oklch(88.4% 0.02 338.8)
-
Step 300
300
#D0B8C8
oklch(80.8% 0.035 338.1)
-
Step 400
400
#B894AD
oklch(70.7% 0.055 337.5)
-
Step 500
500
#A67998
oklch(63.1% 0.07 338.3)
-
Step 600
600
#916283
oklch(55.7% 0.076 338.2)
-
Step 700
700
#7B516F
oklch(49.2% 0.071 337.7)
-
Step 800
800 (this color)
#613F57
oklch(41.5% 0.059 338.1)
-
Step 900
900
#52384A
oklch(37.7% 0.046 338.4)
-
Step 950
950
#30212B
oklch(27% 0.029 339.3)
#613F57 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) | #404758 | 0.059 |
| Deuteranopia (no green cones) | #484C56 | 0.056 |
| Tritanopia (no blue cones) | #654047 | 0.029 |
| Achromatopsia (no color) | #4A4A4A | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613F57
#613F57
oklch(41.5% 0.059 338.1)
- #2E563F
#2E563F
oklch(41.6% 0.06 157.3)
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 #613F57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.039
- Brownish Purple #76424E ΔE 0.046
- Dusty Grape #545775 ΔE 0.074
- Charcoal Grey #3C4142 ΔE 0.078
- Dusk #4E5481 ΔE 0.082
- Dark Mauve #874C62 ΔE 0.085
- Dark Grey Blue #29465B ΔE 0.089
- YInMn Blue #415A77 ΔE 0.090
Use #613F57 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.