#613C57
Closest named color: Purple Brown (#673A3F). oklch(41% 0.065 337.3), rgb(97, 60, 87).
Aa
White text reads best on this color (9.16:1).
About this color
#613C57 is a dark, muted purple. In OKLCH its lightness is 41%, its chroma 0.065 and its hue 337°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.040 away. White text reads best on it, at 9.16:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | muted (0.065) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.29:1 |
| White text | 9.16:1 |
Values
| HEX | #613C57 |
| RGB | rgb(97, 60, 87) |
| HSL | hsl(316, 24%, 31%) |
| OKLCH | oklch(41% 0.065 337.3) |
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 #613C57 | 9.16:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #613C57 | 2.29:1 | Fails | Lc 13.0 | Not readable |
| #613C57 text on white | 9.16:1 | AAA | Lc 91.0 | Preferred for body text |
| #613C57 text on black | 2.29:1 | Fails | Lc -11.4 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7EC
oklch(93.6% 0.011 339.3)
-
Step 200
200
#E3D4DE
oklch(88.5% 0.021 337.7)
-
Step 300
300
#D2B8CA
oklch(81% 0.038 337.1)
-
Step 400
400
#BA92AE
oklch(70.6% 0.061 337.4)
-
Step 500
500
#A9779B
oklch(63.1% 0.079 337.2)
-
Step 600
600
#936085
oklch(55.6% 0.084 337.3)
-
Step 700
700
#7D4F71
oklch(49.1% 0.078 336.9)
-
Step 800
800 (this color)
#613C57
oklch(41% 0.065 337.3)
-
Step 900
900
#53374B
oklch(37.7% 0.05 337.6)
-
Step 950
950
#31202C
oklch(26.9% 0.033 337.8)
#613C57 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) | #3D4558 | 0.065 |
| Deuteranopia (no green cones) | #464A56 | 0.060 |
| Tritanopia (no blue cones) | #653D46 | 0.031 |
| Achromatopsia (no color) | #484848 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613C57
#613C57
oklch(41% 0.065 337.3)
- #28553C
#28553C
oklch(41% 0.066 157.4)
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 #613C57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.040
- Brownish Purple #76424E ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.080
- Dusty Grape #545775 ΔE 0.080
- Dusk #4E5481 ΔE 0.087
- Dark Mauve #874C62 ΔE 0.089
- Dark Grey Blue #29465B ΔE 0.091
- Grape Purple #5D1451 ΔE 0.092
Use #613C57 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.