#635F78
Closest named color: Slate (#516572). oklch(49.9% 0.04 292.2), rgb(99, 95, 120).
Aa
White text reads best on this color (6.10:1).
About this color
#635F78 is a medium-dark, muted purple. In OKLCH its lightness is 50%, its chroma 0.040 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate (#516572), ΔE 0.034 away. White text reads best on it, at 6.10:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Slate (#516572) |
| Black text | 3.43:1 |
| White text | 6.10:1 |
Values
| HEX | #635F78 |
| RGB | rgb(99, 95, 120) |
| HSL | hsl(250, 12%, 42%) |
| OKLCH | oklch(49.9% 0.04 292.2) |
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 #635F78 | 6.10:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #635F78 | 3.43:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #635F78 text on white | 6.10:1 | AA | Lc 80.5 | Fine for body text |
| #635F78 text on black | 3.43:1 | AA large text | Lc -21.3 | 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
#EAE9ED
oklch(93.6% 0.005 297.7)
-
Step 200
200
#D9D8E0
oklch(88.5% 0.011 291.9)
-
Step 300
300
#C0BFCC
oklch(80.9% 0.018 289.5)
-
Step 400
400
#A19DB3
oklch(70.7% 0.032 293.9)
-
Step 500
500
#8A86A0
oklch(63.2% 0.039 292.3)
-
Step 600
600
#736F8B
oklch(55.6% 0.043 291.5)
-
Step 700
700 (this color)
#635F78
oklch(49.9% 0.04 292.2)
-
Step 800
800
#4F4C60
oklch(42.7% 0.033 291.8)
-
Step 900
900
#423F4E
oklch(37.7% 0.026 294.3)
-
Step 950
950
#26252E
oklch(26.9% 0.017 290.3)
#635F78 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) | #596279 | 0.016 |
| Deuteranopia (no green cones) | #5A6177 | 0.015 |
| Tritanopia (no blue cones) | #5F6367 | 0.034 |
| Achromatopsia (no color) | #626262 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635F78
#635F78
oklch(49.9% 0.04 292.2)
- #63654B
#63654B
oklch(49.8% 0.039 111.4)
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 #635F78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.034
- Dusty Grape #545775 ΔE 0.035
- Dim Gray #696969 ΔE 0.045
- Dusk #4E5481 ΔE 0.053
- YInMn Blue #415A77 ΔE 0.053
- Muted Purple #805B87 ΔE 0.057
- Dusty Purple #825F87 ΔE 0.058
- Denim #3B638C ΔE 0.058
Use #635F78 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.