#63404E
Closest named color: Purple Brown (#673A3F). oklch(41.6% 0.053 354), rgb(99, 64, 78).
Aa
White text reads best on this color (8.84:1).
About this color
#63404E is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.053 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.025 away. White text reads best on it, at 8.84:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.37:1 |
| White text | 8.84:1 |
Values
| HEX | #63404E |
| RGB | rgb(99, 64, 78) |
| HSL | hsl(336, 21%, 32%) |
| OKLCH | oklch(41.6% 0.053 354) |
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 #63404E | 8.84:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #63404E | 2.37:1 | Fails | Lc 13.8 | Not readable |
| #63404E text on white | 8.84:1 | AAA | Lc 90.1 | Preferred for body text |
| #63404E text on black | 2.37:1 | Fails | Lc -12.1 | 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
#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
#BA94A3
oklch(70.6% 0.05 352.8)
-
Step 500
500
#A97A8C
oklch(63.2% 0.063 354.3)
-
Step 600
600
#936376
oklch(55.6% 0.067 354.1)
-
Step 700
700
#7D5163
oklch(49% 0.064 353.5)
-
Step 800
800 (this color)
#63404E
oklch(41.6% 0.053 354)
-
Step 900
900
#533943
oklch(37.8% 0.04 354.4)
-
Step 950
950
#312127
oklch(27% 0.027 354.7)
#63404E 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) | #44474F | 0.056 |
| Deuteranopia (no green cones) | #4C4C4D | 0.052 |
| Tritanopia (no blue cones) | #683F45 | 0.017 |
| Achromatopsia (no color) | #4A4A4A | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63404E
#63404E
oklch(41.6% 0.053 354)
- #2A564A
#2A564A
oklch(41.8% 0.053 173.7)
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 #63404E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.025
- Brownish Purple #76424E ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.074
- Dusty Grape #545775 ΔE 0.079
- Dark Mauve #874C62 ΔE 0.083
- Dark Slate Gray #2F4F4F ΔE 0.090
- Dusk #4E5481 ΔE 0.091
- Mud Brown #60460F ΔE 0.091
Use #63404E 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.