#64303C
Closest named color: Purple Brown (#673A3F). oklch(38.2% 0.076 6.7), rgb(100, 48, 60).
Aa
White text reads best on this color (10.34:1).
About this color
#64303C is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.076 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.027 away. White text reads best on it, at 10.34:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.02:1 |
| White text | 10.34:1 |
Values
| HEX | #64303C |
| RGB | rgb(100, 48, 60) |
| HSL | hsl(346, 35%, 29%) |
| OKLCH | oklch(38.2% 0.076 6.7) |
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 #64303C | 10.34:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #64303C | 2.02:1 | Fails | Lc 10.2 | Not readable |
| #64303C text on white | 10.34:1 | AAA | Lc 93.7 | Preferred for body text |
| #64303C text on black | 2.02:1 | Fails | Lc -8.8 | 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
#F4E6E8
oklch(93.7% 0.015 7.5)
-
Step 200
200
#EDD1D5
oklch(88.5% 0.032 8)
-
Step 300
300
#E2B2BA
oklch(80.9% 0.057 7.2)
-
Step 400
400
#D28997
oklch(70.8% 0.091 7.1)
-
Step 500
500
#C4697E
oklch(63.1% 0.117 6.3)
-
Step 600
600
#AF4F67
oklch(55.6% 0.127 6.5)
-
Step 700
700
#964055
oklch(49.1% 0.117 7.2)
-
Step 800
800
#7A3546
oklch(42.7% 0.098 6.7)
-
Step 900
900 (this color)
#64303C
oklch(38.2% 0.076 6.7)
-
Step 950
950
#3A1C22
oklch(27% 0.048 8)
#64303C 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) | #393A3C | 0.084 |
| Deuteranopia (no green cones) | #46443B | 0.078 |
| Tritanopia (no blue cones) | #6C2B34 | 0.020 |
| Achromatopsia (no color) | #404040 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64303C
#64303C
oklch(38.2% 0.076 6.7)
- #004E49
#004E49
oklch(38.2% 0.067 187.4)
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 #64303C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.027
- Brownish Purple #76424E ΔE 0.064
- Chestnut #742802 ΔE 0.069
- Wine Red #7B0323 ΔE 0.073
- Bordeaux #7B002C ΔE 0.074
- Merlot #730039 ΔE 0.074
- Reddy Brown #6E1005 ΔE 0.075
- Claret #680018 ΔE 0.080
Use #64303C 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.