#64313A
Closest named color: Purple Brown (#673A3F). oklch(38.3% 0.074 10), rgb(100, 49, 58).
Aa
White text reads best on this color (10.28:1).
About this color
#64313A is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.074 and its hue 10°. 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 10.28:1.
| 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 | 10.28:1 |
Values
| HEX | #64313A |
| RGB | rgb(100, 49, 58) |
| HSL | hsl(349, 34%, 29%) |
| OKLCH | oklch(38.3% 0.074 10) |
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 #64313A | 10.28:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #64313A | 2.04:1 | Fails | Lc 10.4 | Not readable |
| #64313A text on white | 10.28:1 | AAA | Lc 93.6 | Preferred for body text |
| #64313A text on black | 2.04:1 | Fails | Lc -8.9 | 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 900.
-
Step 50
50
#FAF3F4
oklch(97% 0.008 7.3)
-
Step 100
100
#F4E6E7
oklch(93.6% 0.015 12.4)
-
Step 200
200
#EDD1D4
oklch(88.5% 0.032 10.4)
-
Step 300
300
#E2B2B8
oklch(80.8% 0.056 10)
-
Step 400
400
#D18994
oklch(70.6% 0.089 9.6)
-
Step 500
500
#C36B7A
oklch(63.1% 0.113 9.9)
-
Step 600
600
#AE5163
oklch(55.6% 0.122 9.8)
-
Step 700
700
#964152
oklch(49.2% 0.115 9.9)
-
Step 800
800
#793643
oklch(42.6% 0.094 9.8)
-
Step 900
900 (this color)
#64313A
oklch(38.3% 0.074 10)
-
Step 950
950
#3A1C21
oklch(27% 0.047 10.1)
#64313A 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) | #3B3A3A | 0.080 |
| Deuteranopia (no green cones) | #474439 | 0.074 |
| Tritanopia (no blue cones) | #6C2C34 | 0.019 |
| Achromatopsia (no color) | #414141 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64313A
#64313A
oklch(38.3% 0.074 10)
- #004E4B
#004E4B
oklch(38.3% 0.066 190.3)
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 #64313A, 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 0.063
- Chestnut #742802 ΔE 0.065
- Reddy Brown #6E1005 ΔE 0.074
- Wine Red #7B0323 ΔE 0.074
- Bordeaux #7B002C ΔE 0.076
- Merlot #730039 ΔE 0.077
- Claret #680018 ΔE 0.081
Use #64313A 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.