#64303D
Closest named color: Purple Brown (#673A3F). oklch(38.2% 0.076 5.5), rgb(100, 48, 61).
Aa
White text reads best on this color (10.33:1).
About this color
#64303D is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.076 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.028 away. White text reads best on it, at 10.33:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.03:1 |
| White text | 10.33:1 |
Values
| HEX | #64303D |
| RGB | rgb(100, 48, 61) |
| HSL | hsl(345, 35%, 29%) |
| OKLCH | oklch(38.2% 0.076 5.5) |
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 #64303D | 10.33:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #64303D | 2.03:1 | Fails | Lc 10.3 | Not readable |
| #64303D text on white | 10.33:1 | AAA | Lc 93.7 | Preferred for body text |
| #64303D text on black | 2.03:1 | 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
#FAF3F5
oklch(97% 0.008 357.8)
-
Step 100
100
#F4E6E8
oklch(93.7% 0.015 7.5)
-
Step 200
200
#EDD1D6
oklch(88.5% 0.032 5.6)
-
Step 300
300
#E2B2BB
oklch(80.9% 0.057 5.9)
-
Step 400
400
#D28898
oklch(70.7% 0.092 5.6)
-
Step 500
500
#C4697F
oklch(63.1% 0.118 5.6)
-
Step 600
600
#AF4F69
oklch(55.6% 0.128 5.1)
-
Step 700
700
#964057
oklch(49.2% 0.118 5.7)
-
Step 800
800
#7A3547
oklch(42.7% 0.098 5.8)
-
Step 900
900 (this color)
#64303D
oklch(38.2% 0.076 5.5)
-
Step 950
950
#3A1C23
oklch(27.1% 0.048 5.8)
#64303D 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) | #393A3D | 0.084 |
| Deuteranopia (no green cones) | #46443C | 0.077 |
| Tritanopia (no blue cones) | #6C2B35 | 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°).
- #64303D
#64303D
oklch(38.2% 0.076 5.5)
- #004E48
#004E48
oklch(38.1% 0.067 186)
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 #64303D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.028
- Brownish Purple #76424E ΔE 0.064
- Chestnut #742802 ΔE 0.070
- Merlot #730039 ΔE 0.074
- Wine Red #7B0323 ΔE 0.074
- Bordeaux #7B002C ΔE 0.074
- Reddy Brown #6E1005 ΔE 0.076
- Wine #80013F ΔE 0.081
Use #64303D 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.