#63404F
Closest named color: Purple Brown (#673A3F). oklch(41.7% 0.053 352.3), rgb(99, 64, 79).
Aa
White text reads best on this color (8.83:1).
About this color
#63404F is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.053 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.026 away. White text reads best on it, at 8.83:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.37:1 |
| White text | 8.83:1 |
Values
| HEX | #63404F |
| RGB | rgb(99, 64, 79) |
| HSL | hsl(334, 21%, 32%) |
| OKLCH | oklch(41.7% 0.053 352.3) |
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 #63404F | 8.83:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #63404F | 2.37:1 | Fails | Lc 13.9 | Not readable |
| #63404F text on white | 8.83:1 | AAA | Lc 90.1 | Preferred for body text |
| #63404F text on black | 2.37:1 | Fails | Lc -12.2 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EA
oklch(93.5% 0.01 352.4)
-
Step 200
200
#E3D5DA
oklch(88.6% 0.017 353.7)
-
Step 300
300
#D2B9C2
oklch(81% 0.031 354)
-
Step 400
400
#BA94A4
oklch(70.6% 0.05 351.3)
-
Step 500
500
#A87A8D
oklch(63.1% 0.063 352.5)
-
Step 600
600
#936277
oklch(55.5% 0.069 352.3)
-
Step 700
700
#7D5164
oklch(49% 0.064 352.2)
-
Step 800
800 (this color)
#63404F
oklch(41.7% 0.053 352.3)
-
Step 900
900
#533844
oklch(37.6% 0.042 351)
-
Step 950
950
#312128
oklch(27% 0.027 351.1)
#63404F 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) | #434750 | 0.058 |
| Deuteranopia (no green cones) | #4C4C4E | 0.052 |
| Tritanopia (no blue cones) | #683F45 | 0.018 |
| Achromatopsia (no color) | #4A4A4A | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63404F
#63404F
oklch(41.7% 0.053 352.3)
- #2A5649
#2A5649
oklch(41.7% 0.054 172.2)
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 #63404F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.026
- Brownish Purple #76424E ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.075
- Dusty Grape #545775 ΔE 0.078
- Dark Mauve #874C62 ΔE 0.082
- Dark Slate Gray #2F4F4F ΔE 0.090
- Dusk #4E5481 ΔE 0.090
- Onyx #343A40 ΔE 0.092
Use #63404F 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.