#635E71
Closest named color: Slate (#516572). oklch(49.3% 0.031 297.3), rgb(99, 94, 113).
Aa
White text reads best on this color (6.23:1).
About this color
#635E71 is a medium-dark, muted purple. In OKLCH its lightness is 49%, its chroma 0.031 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate (#516572), ΔE 0.032 away. White text reads best on it, at 6.23:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Slate (#516572) |
| Black text | 3.37:1 |
| White text | 6.23:1 |
Values
| HEX | #635E71 |
| RGB | rgb(99, 94, 113) |
| HSL | hsl(256, 9%, 41%) |
| OKLCH | oklch(49.3% 0.031 297.3) |
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 #635E71 | 6.23:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #635E71 | 3.37:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #635E71 text on white | 6.23:1 | AA | Lc 81.1 | Fine for body text |
| #635E71 text on black | 3.37:1 | AA large text | Lc -20.8 | Dividers and decoration only |
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 700.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#EAE9EC
oklch(93.6% 0.004 301.4)
-
Step 200
200
#D9D8DE
oklch(88.5% 0.008 293.9)
-
Step 300
300
#C1BFC9
oklch(80.9% 0.014 295.3)
-
Step 400
400
#A29EAE
oklch(70.8% 0.023 297.2)
-
Step 500
500
#8B869A
oklch(63.1% 0.03 297)
-
Step 600
600
#757085
oklch(55.7% 0.033 296.2)
-
Step 700
700 (this color)
#635E71
oklch(49.3% 0.031 297.3)
-
Step 800
800
#504C5B
oklch(42.6% 0.025 297.5)
-
Step 900
900
#42404B
oklch(37.8% 0.019 293.8)
-
Step 950
950
#27252C
oklch(27% 0.013 298.6)
#635E71 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) | #5A6172 | 0.015 |
| Deuteranopia (no green cones) | #5B6070 | 0.014 |
| Tritanopia (no blue cones) | #616164 | 0.026 |
| Achromatopsia (no color) | #616161 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635E71
#635E71
oklch(49.3% 0.031 297.3)
- #606450
#606450
oklch(49.4% 0.031 116.7)
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 #635E71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.032
- Dusty Grape #545775 ΔE 0.035
- Dim Gray #696969 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.053
- Dusk #4E5481 ΔE 0.057
- Dull Purple #84597E ΔE 0.062
- Muted Purple #805B87 ΔE 0.063
- Denim #3B638C ΔE 0.064
Use #635E71 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.