#635F74
Closest named color: Slate (#516572). oklch(49.7% 0.033 293.9), rgb(99, 95, 116).
Aa
White text reads best on this color (6.14:1).
About this color
#635F74 is a medium-dark, muted purple. In OKLCH its lightness is 50%, its chroma 0.033 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate (#516572), ΔE 0.031 away. White text reads best on it, at 6.14:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Slate (#516572) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #635F74 |
| RGB | rgb(99, 95, 116) |
| HSL | hsl(251, 10%, 41%) |
| OKLCH | oklch(49.7% 0.033 293.9) |
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 #635F74 | 6.14:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #635F74 | 3.41:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #635F74 text on white | 6.14:1 | AA | Lc 80.7 | Fine for body text |
| #635F74 text on black | 3.41:1 | AA large text | Lc -21.2 | 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
#D9D8DF
oklch(88.5% 0.01 292.8)
-
Step 300
300
#C1BFCA
oklch(81% 0.015 294.4)
-
Step 400
400
#A19EB0
oklch(70.8% 0.026 293.4)
-
Step 500
500
#8A869C
oklch(63.1% 0.033 293.8)
-
Step 600
600
#747087
oklch(55.7% 0.036 293.2)
-
Step 700
700 (this color)
#635F74
oklch(49.7% 0.033 293.9)
-
Step 800
800
#4F4C5D
oklch(42.6% 0.028 293.3)
-
Step 900
900
#42404C
oklch(37.8% 0.02 293)
-
Step 950
950
#27252D
oklch(27% 0.015 296.8)
#635F74 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) | #5B6275 | 0.014 |
| Deuteranopia (no green cones) | #5B6173 | 0.013 |
| Tritanopia (no blue cones) | #606266 | 0.028 |
| Achromatopsia (no color) | #626262 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635F74
#635F74
oklch(49.7% 0.033 293.9)
- #62654F
#62654F
oklch(49.8% 0.034 113.9)
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 #635F74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.031
- Dusty Grape #545775 ΔE 0.036
- Dim Gray #696969 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.053
- Dusk #4E5481 ΔE 0.056
- Muted Purple #805B87 ΔE 0.060
- Dull Purple #84597E ΔE 0.061
- Denim #3B638C ΔE 0.061
Use #635F74 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.