#640D2D
Closest named color: Burgundy (#610023). oklch(33.3% 0.12 5.6), rgb(100, 13, 45).
Aa
White text reads best on this color (12.82:1).
About this color
#640D2D is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.120 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.021 away. White text reads best on it, at 12.82:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.120) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.63:1 |
| White text | 12.82:1 |
Values
| HEX | #640D2D |
| RGB | rgb(100, 13, 45) |
| HSL | hsl(338, 77%, 22%) |
| OKLCH | oklch(33.3% 0.12 5.6) |
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 #640D2D | 12.82:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #640D2D | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #640D2D text on white | 12.82:1 | AAA | Lc 97.6 | Preferred for body text |
| #640D2D text on black | 1.63:1 | 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
#FDF2F4
oklch(97% 0.012 4.7)
-
Step 100
100
#FAE3E7
oklch(93.6% 0.026 5.7)
-
Step 200
200
#F8CCD4
oklch(88.5% 0.051 5.9)
-
Step 300
300
#F3A8B8
oklch(80.8% 0.09 5.3)
-
Step 400
400
#EA7793
oklch(70.8% 0.144 6)
-
Step 500
500
#DF4D79
oklch(63.1% 0.184 5.7)
-
Step 600
600
#CA2662
oklch(55.5% 0.2 5.6)
-
Step 700
700
#AF1451
oklch(49.2% 0.187 5.8)
-
Step 800
800
#8E1743
oklch(42.8% 0.155 5.4)
-
Step 900
900 (this color)
#640D2D
oklch(33.3% 0.12 5.6)
-
Step 950
950
#431321
oklch(27% 0.075 5.7)
#640D2D 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) | #25272E | 0.135 |
| Deuteranopia (no green cones) | #3B382B | 0.123 |
| Tritanopia (no blue cones) | #6E001C | 0.033 |
| Achromatopsia (no color) | #323232 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #640D2D
#640D2D
oklch(33.3% 0.12 5.6)
- #00403A
#00403A
oklch(33.4% 0.059 184.5)
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 #640D2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.021
- Claret #680018 ΔE 0.031
- Merlot #730039 ΔE 0.039
- Bordeaux #7B002C ΔE 0.050
- Wine Red #7B0323 ΔE 0.053
- Reddy Brown #6E1005 ΔE 0.057
- Blood #770001 ΔE 0.065
- Grape Purple #5D1451 ΔE 0.065
Use #640D2D 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.