#634447
Closest named color: Purple Brown (#673A3F). oklch(42.2% 0.043 12.7), rgb(99, 68, 71).
Aa
White text reads best on this color (8.57:1).
About this color
#634447 is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.043 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.027 away. White text reads best on it, at 8.57:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.44:1 |
| White text | 8.57:1 |
Values
| HEX | #634447 |
| RGB | rgb(99, 68, 71) |
| HSL | hsl(354, 19%, 33%) |
| OKLCH | oklch(42.2% 0.043 12.7) |
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 #634447 | 8.57:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #634447 | 2.44:1 | Fails | Lc 14.6 | Not readable |
| #634447 text on white | 8.57:1 | AAA | Lc 89.4 | Fine for body text |
| #634447 text on black | 2.44:1 | Fails | Lc -12.8 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E2D6D6
oklch(88.6% 0.013 17.4)
-
Step 300
300
#D0BABC
oklch(80.8% 0.025 11.4)
-
Step 400
400
#B89799
oklch(70.7% 0.04 14)
-
Step 500
500
#A67D81
oklch(63.1% 0.051 12.1)
-
Step 600
600
#91666A
oklch(55.6% 0.056 12.9)
-
Step 700
700
#7B5558
oklch(49.1% 0.051 13.9)
-
Step 800
800 (this color)
#634447
oklch(42.2% 0.043 12.7)
-
Step 900
900
#523A3D
oklch(37.6% 0.034 10.5)
-
Step 950
950
#302223
oklch(26.9% 0.022 13.8)
#634447 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) | #494947 | 0.047 |
| Deuteranopia (no green cones) | #504E46 | 0.043 |
| Tritanopia (no blue cones) | #694145 | 0.013 |
| Achromatopsia (no color) | #4C4C4C | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634447
#634447
oklch(42.2% 0.043 12.7)
- #305554
#305554
oklch(42.2% 0.043 193.4)
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 #634447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.027
- Brownish Purple #76424E ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.071
- Mud Brown #60460F ΔE 0.074
- Dusty Grape #545775 ΔE 0.080
- Dark Slate Gray #2F4F4F ΔE 0.083
- Dark Mauve #874C62 ΔE 0.084
- Milk Chocolate #7F4E1E ΔE 0.086
Use #634447 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.