#641B45
Closest named color: Grape Purple (#5D1451). oklch(35.5% 0.114 349.1), rgb(100, 27, 69).
Aa
White text reads best on this color (11.76:1).
About this color
#641B45 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.114 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.034 away. White text reads best on it, at 11.76:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.78:1 |
| White text | 11.76:1 |
Values
| HEX | #641B45 |
| RGB | rgb(100, 27, 69) |
| HSL | hsl(325, 57%, 25%) |
| OKLCH | oklch(35.5% 0.114 349.1) |
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 #641B45 | 11.76:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #641B45 | 1.78:1 | Fails | Lc 7.7 | Not readable |
| #641B45 text on white | 11.76:1 | AAA | Lc 96.2 | Preferred for body text |
| #641B45 text on black | 1.78:1 | 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
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E4EC
oklch(93.7% 0.024 351.3)
-
Step 200
200
#F3CDDE
oklch(88.5% 0.048 349.4)
-
Step 300
300
#EBAAC9
oklch(80.8% 0.086 349)
-
Step 400
400
#DF7BAE
oklch(70.8% 0.137 349.3)
-
Step 500
500
#D2549A
oklch(63% 0.175 348.9)
-
Step 600
600
#BE3385
oklch(55.7% 0.191 349)
-
Step 700
700
#A32470
oklch(49.1% 0.177 349.1)
-
Step 800
800
#84215B
oklch(42.6% 0.146 349.1)
-
Step 900
900 (this color)
#641B45
oklch(35.5% 0.114 349.1)
-
Step 950
950
#3F152C
oklch(27% 0.072 349)
#641B45 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) | #253046 | 0.127 |
| Deuteranopia (no green cones) | #3A3C43 | 0.112 |
| Tritanopia (no blue cones) | #6C182D | 0.044 |
| Achromatopsia (no color) | #383838 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641B45
#641B45
oklch(35.5% 0.114 349.1)
- #004735
#004735
oklch(35.4% 0.071 169)
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 #641B45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.034
- Merlot #730039 ΔE 0.041
- Velvet #750851 ΔE 0.045
- Rich Purple #720058 ΔE 0.052
- Burgundy #610023 ΔE 0.060
- Wine #80013F ΔE 0.061
- Bordeaux #7B002C ΔE 0.063
- Red Purple #820747 ΔE 0.064
Use #641B45 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.