#663135
Closest named color: Purple Brown (#673A3F). oklch(38.4% 0.076 16.6), rgb(102, 49, 53).
Aa
White text reads best on this color (10.21:1).
About this color
#663135 is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.076 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.024 away. White text reads best on it, at 10.21:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.05:1 |
| White text | 10.21:1 |
Values
| HEX | #663135 |
| RGB | rgb(102, 49, 53) |
| HSL | hsl(355, 35%, 30%) |
| OKLCH | oklch(38.4% 0.076 16.6) |
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 #663135 | 10.21:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #663135 | 2.05:1 | Fails | Lc 10.5 | Not readable |
| #663135 text on white | 10.21:1 | AAA | Lc 93.4 | Preferred for body text |
| #663135 text on black | 2.05:1 | Fails | Lc -9.1 | 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 900.
-
Step 50
50
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F5E6E6
oklch(93.7% 0.016 17.4)
-
Step 200
200
#EED1D2
oklch(88.5% 0.033 15.4)
-
Step 300
300
#E3B2B4
oklch(80.8% 0.057 15.7)
-
Step 400
400
#D3898C
oklch(70.6% 0.091 17)
-
Step 500
500
#C66A70
oklch(63.1% 0.117 16.9)
-
Step 600
600
#B15059
oklch(55.6% 0.127 16.4)
-
Step 700
700
#984049
oklch(49.1% 0.118 16.3)
-
Step 800
800
#7B353C
oklch(42.6% 0.098 16)
-
Step 900
900 (this color)
#663135
oklch(38.4% 0.076 16.6)
-
Step 950
950
#3B1C1E
oklch(27.1% 0.049 16.8)
#663135 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) | #3C3A35 | 0.082 |
| Deuteranopia (no green cones) | #494534 | 0.076 |
| Tritanopia (no blue cones) | #6F2A33 | 0.022 |
| Achromatopsia (no color) | #414141 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #663135
#663135
oklch(38.4% 0.076 16.6)
- #004E4F
#004E4F
oklch(38.4% 0.065 196.3)
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 #663135, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.024
- Chestnut #742802 ΔE 0.057
- Brownish Purple #76424E ΔE 0.063
- Reddy Brown #6E1005 ΔE 0.069
- Wine Red #7B0323 ΔE 0.071
- Bordeaux #7B002C ΔE 0.074
- Blood #770001 ΔE 0.079
- Claret #680018 ΔE 0.079
Use #663135 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.