#64313D
Closest named color: Purple Brown (#673A3F). oklch(38.4% 0.074 6.2), rgb(100, 49, 61).
Aa
White text reads best on this color (10.25:1).
About this color
#64313D is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.074 and its hue 6°. 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 10.25:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.04:1 |
| White text | 10.25:1 |
Values
| HEX | #64313D |
| RGB | rgb(100, 49, 61) |
| HSL | hsl(346, 34%, 29%) |
| OKLCH | oklch(38.4% 0.074 6.2) |
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 #64313D | 10.25:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #64313D | 2.04:1 | Fails | Lc 10.4 | Not readable |
| #64313D text on white | 10.25:1 | AAA | Lc 93.5 | Preferred for body text |
| #64313D text on black | 2.04:1 | Fails | Lc -9.0 | 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
#FAF3F5
oklch(97% 0.008 357.8)
-
Step 100
100
#F4E6E8
oklch(93.7% 0.015 7.5)
-
Step 200
200
#ECD1D6
oklch(88.4% 0.031 5.1)
-
Step 300
300
#E1B2BB
oklch(80.8% 0.056 5.6)
-
Step 400
400
#D18998
oklch(70.7% 0.09 6)
-
Step 500
500
#C36A7E
oklch(63.1% 0.115 6.5)
-
Step 600
600
#AE5068
oklch(55.6% 0.125 6)
-
Step 700
700
#954156
oklch(49.2% 0.115 6.6)
-
Step 800
800
#793647
oklch(42.7% 0.095 6)
-
Step 900
900 (this color)
#64313D
oklch(38.4% 0.074 6.2)
-
Step 950
950
#3A1C23
oklch(27.1% 0.048 5.8)
#64313D 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) | #3A3B3D | 0.082 |
| Deuteranopia (no green cones) | #47443C | 0.074 |
| Tritanopia (no blue cones) | #6C2C35 | 0.020 |
| Achromatopsia (no color) | #414141 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64313D
#64313D
oklch(38.4% 0.074 6.2)
- #004F49
#004F49
oklch(38.5% 0.067 186.1)
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 #64313D, 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 0.062
- Chestnut #742802 ΔE 0.070
- Wine Red #7B0323 ΔE 0.075
- Bordeaux #7B002C ΔE 0.076
- Merlot #730039 ΔE 0.076
- Reddy Brown #6E1005 ΔE 0.077
- Charcoal Grey #3C4142 ΔE 0.082
Use #64313D 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.