#664A58
Closest named color: Brownish Purple (#76424E). oklch(44.4% 0.043 347.5), rgb(102, 74, 88).
Aa
White text reads best on this color (7.82:1).
About this color
#664A58 is a dark, muted red. In OKLCH its lightness is 44%, its chroma 0.043 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.035 away. White text reads best on it, at 7.82:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #664A58 |
| RGB | rgb(102, 74, 88) |
| HSL | hsl(330, 16%, 35%) |
| OKLCH | oklch(44.4% 0.043 347.5) |
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 #664A58 | 7.82:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #664A58 | 2.68:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #664A58 text on white | 7.82:1 | AAA | Lc 87.1 | Fine for body text |
| #664A58 text on black | 2.68:1 | Fails | Lc -15.0 | Dividers and decoration only |
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
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EEE8EB
oklch(93.7% 0.008 345.4)
-
Step 200
200
#E1D6DB
oklch(88.6% 0.014 348)
-
Step 300
300
#CEBAC3
oklch(80.8% 0.026 348.7)
-
Step 400
400
#B597A5
oklch(70.8% 0.04 348.4)
-
Step 500
500
#A27D8F
oklch(63.1% 0.052 347.9)
-
Step 600
600
#8D6679
oklch(55.6% 0.057 348.3)
-
Step 700
700
#775566
oklch(49.1% 0.051 347.7)
-
Step 800
800 (this color)
#664A58
oklch(44.4% 0.043 347.5)
-
Step 900
900
#4F3A45
oklch(37.6% 0.034 346.1)
-
Step 950
950
#2F2228
oklch(27% 0.022 349.3)
#664A58 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) | #4C4F59 | 0.045 |
| Deuteranopia (no green cones) | #535457 | 0.042 |
| Tritanopia (no blue cones) | #6A4A4F | 0.016 |
| Achromatopsia (no color) | #525252 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664A58
#664A58
oklch(44.4% 0.043 347.5)
- #3B5C4F
#3B5C4F
oklch(44.5% 0.044 167.7)
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 #664A58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.035
- Purple Brown #673A3F ΔE 0.050
- Dusty Grape #545775 ΔE 0.056
- Dark Mauve #874C62 ΔE 0.065
- Dusk #4E5481 ΔE 0.074
- YInMn Blue #415A77 ΔE 0.076
- Slate #516572 ΔE 0.081
- Charcoal Grey #3C4142 ΔE 0.088
Use #664A58 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.