#634F4E
Closest named color: Brownish Purple (#76424E). oklch(44.8% 0.027 21.6), rgb(99, 79, 78).
Aa
White text reads best on this color (7.61:1).
About this color
#634F4E is a dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Brownish Purple (#76424E), ΔE 0.048 away. White text reads best on it, at 7.61:1.
| Hue family | Neutrals |
| Lightness | dark (45%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.75:1 |
| White text | 7.61:1 |
Values
| HEX | #634F4E |
| RGB | rgb(99, 79, 78) |
| HSL | hsl(3, 12%, 35%) |
| OKLCH | oklch(44.8% 0.027 21.6) |
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 #634F4E | 7.61:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #634F4E | 2.75:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #634F4E text on white | 7.61:1 | AAA | Lc 86.4 | Fine for body text |
| #634F4E text on black | 2.75:1 | Fails | Lc -15.6 | 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 800.
-
Step 50
50
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EDE9E8
oklch(93.7% 0.005 34.3)
-
Step 200
200
#DFD7D6
oklch(88.5% 0.009 26)
-
Step 300
300
#CBBDBC
oklch(81% 0.016 22.4)
-
Step 400
400
#B09B9A
oklch(70.8% 0.025 21)
-
Step 500
500
#9C8281
oklch(63% 0.032 20.6)
-
Step 600
600
#876C6A
oklch(55.7% 0.035 23.2)
-
Step 700
700
#725A58
oklch(49.1% 0.032 23.8)
-
Step 800
800 (this color)
#634F4E
oklch(44.8% 0.027 21.6)
-
Step 900
900
#4C3D3D
oklch(37.6% 0.021 18.1)
-
Step 950
950
#2D2424
oklch(27.1% 0.014 18)
#634F4E 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) | #53514E | 0.027 |
| Deuteranopia (no green cones) | #57554E | 0.026 |
| Tritanopia (no blue cones) | #684D4F | 0.011 |
| Achromatopsia (no color) | #545454 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634F4E
#634F4E
oklch(44.8% 0.027 21.6)
- #43595B
#43595B
oklch(44.7% 0.027 203.2)
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 #634F4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.048
- Purple Brown #673A3F ΔE 0.057
- Dusty Grape #545775 ΔE 0.063
- Slate #516572 ΔE 0.074
- Milk Chocolate #7F4E1E ΔE 0.076
- Dark Mauve #874C62 ΔE 0.076
- Mud Brown #60460F ΔE 0.076
- YInMn Blue #415A77 ΔE 0.077
Use #634F4E 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.