#640535
Closest named color: Burgundy (#610023). oklch(33% 0.129 358.1), rgb(100, 5, 53).
Aa
White text reads best on this color (13.00:1).
About this color
#640535 is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.129 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.030 away. White text reads best on it, at 13.00:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.61:1 |
| White text | 13.00:1 |
Values
| HEX | #640535 |
| RGB | rgb(100, 5, 53) |
| HSL | hsl(330, 90%, 21%) |
| OKLCH | oklch(33% 0.129 358.1) |
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 #640535 | 13.00:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #640535 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #640535 text on white | 13.00:1 | AAA | Lc 97.6 | Preferred for body text |
| #640535 text on black | 1.61:1 | Fails | Lc 0.0 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FBE3EA
oklch(93.7% 0.028 358)
-
Step 200
200
#F8CBD9
oklch(88.5% 0.054 357.7)
-
Step 300
300
#F4A6C0
oklch(80.8% 0.097 357.9)
-
Step 400
400
#EB73A0
oklch(70.7% 0.155 358.1)
-
Step 500
500
#E14689
oklch(63.2% 0.199 358)
-
Step 600
600
#CC1872
oklch(55.6% 0.215 358.4)
-
Step 700
700
#B00060
oklch(49.2% 0.2 358.2)
-
Step 800
800
#8F0C4E
oklch(42.7% 0.166 358.4)
-
Step 900
900 (this color)
#640535
oklch(33% 0.129 358.1)
-
Step 950
950
#441026
oklch(27% 0.083 358.3)
#640535 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) | #1F2636 | 0.147 |
| Deuteranopia (no green cones) | #383733 | 0.131 |
| Tritanopia (no blue cones) | #6D001D | 0.044 |
| Achromatopsia (no color) | #313131 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #640535
#640535
oklch(33% 0.129 358.1)
- #003F35
#003F35
oklch(32.9% 0.061 177.9)
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 #640535, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.030
- Merlot #730039 ΔE 0.034
- Claret #680018 ΔE 0.047
- Grape Purple #5D1451 ΔE 0.051
- Bordeaux #7B002C ΔE 0.056
- Velvet #750851 ΔE 0.059
- Wine Red #7B0323 ΔE 0.063
- Wine #80013F ΔE 0.064
Use #640535 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.