#664154
Closest named color: Brownish Purple (#76424E). oklch(42.4% 0.058 347.7), rgb(102, 65, 84).
Aa
White text reads best on this color (8.57:1).
About this color
#664154 is a dark, muted red. In OKLCH its lightness is 42%, its chroma 0.058 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.033 away. White text reads best on it, at 8.57:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.44:1 |
| White text | 8.57:1 |
Values
| HEX | #664154 |
| RGB | rgb(102, 65, 84) |
| HSL | hsl(329, 22%, 33%) |
| OKLCH | oklch(42.4% 0.058 347.7) |
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 #664154 | 8.57:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #664154 | 2.44:1 | Fails | Lc 14.6 | Not readable |
| #664154 text on white | 8.57:1 | AAA | Lc 89.4 | Fine for body text |
| #664154 text on black | 2.44:1 | Fails | Lc -12.9 | 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
#EFE7EB
oklch(93.5% 0.01 345.4)
-
Step 200
200
#E3D4DB
oklch(88.4% 0.019 347.5)
-
Step 300
300
#D2B8C4
oklch(80.8% 0.034 348.3)
-
Step 400
400
#BB93A7
oklch(70.7% 0.055 347.1)
-
Step 500
500
#A97891
oklch(63% 0.07 347.3)
-
Step 600
600
#94617B
oklch(55.6% 0.075 347.9)
-
Step 700
700
#7E5068
oklch(49.1% 0.07 347.4)
-
Step 800
800 (this color)
#664154
oklch(42.4% 0.058 347.7)
-
Step 900
900
#543846
oklch(37.8% 0.045 348.1)
-
Step 950
950
#312129
oklch(27% 0.028 347.7)
#664154 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) | #444855 | 0.061 |
| Deuteranopia (no green cones) | #4D4E53 | 0.056 |
| Tritanopia (no blue cones) | #6B4048 | 0.021 |
| Achromatopsia (no color) | #4C4C4C | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664154
#664154
oklch(42.4% 0.058 347.7)
- #2B5948
#2B5948
oklch(42.6% 0.059 167.3)
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 #664154, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.033
- Purple Brown #673A3F ΔE 0.034
- Dusty Grape #545775 ΔE 0.073
- Dark Mauve #874C62 ΔE 0.074
- Charcoal Grey #3C4142 ΔE 0.083
- Dusk #4E5481 ΔE 0.085
- YInMn Blue #415A77 ΔE 0.092
- Dark Slate Gray #2F4F4F ΔE 0.096
Use #664154 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.