#641F40
Closest named color: Merlot (#730039). oklch(35.8% 0.106 354.2), rgb(100, 31, 64).
Aa
White text reads best on this color (11.59:1).
About this color
#641F40 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.106 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.042 away. White text reads best on it, at 11.59:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.106) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.81:1 |
| White text | 11.59:1 |
Values
| HEX | #641F40 |
| RGB | rgb(100, 31, 64) |
| HSL | hsl(331, 53%, 26%) |
| OKLCH | oklch(35.8% 0.106 354.2) |
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 #641F40 | 11.59:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #641F40 | 1.81:1 | Fails | Lc 7.9 | Not readable |
| #641F40 text on white | 11.59:1 | AAA | Lc 96.0 | Preferred for body text |
| #641F40 text on black | 1.81:1 | 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
#FCF3F6
oklch(97.2% 0.01 354.9)
-
Step 100
100
#F7E4EB
oklch(93.6% 0.023 353.2)
-
Step 200
200
#F2CEDB
oklch(88.6% 0.044 354.3)
-
Step 300
300
#EAACC4
oklch(80.9% 0.079 354)
-
Step 400
400
#DD7DA6
oklch(70.6% 0.127 353.8)
-
Step 500
500
#D15990
oklch(63.1% 0.162 354.1)
-
Step 600
600
#BC3A7A
oklch(55.6% 0.176 354.1)
-
Step 700
700
#A22B67
oklch(49.2% 0.164 354.1)
-
Step 800
800
#832654
oklch(42.7% 0.135 353.9)
-
Step 900
900 (this color)
#641F40
oklch(35.8% 0.106 354.2)
-
Step 950
950
#3E1628
oklch(26.8% 0.067 354.4)
#641F40 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) | #2A3141 | 0.117 |
| Deuteranopia (no green cones) | #3D3D3E | 0.105 |
| Tritanopia (no blue cones) | #6C1A2C | 0.036 |
| Achromatopsia (no color) | #393939 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641F40
#641F40
oklch(35.8% 0.106 354.2)
- #00483A
#00483A
oklch(35.8% 0.068 174.1)
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 #641F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.042
- Grape Purple #5D1451 ΔE 0.046
- Velvet #750851 ΔE 0.053
- Burgundy #610023 ΔE 0.057
- Bordeaux #7B002C ΔE 0.059
- Wine #80013F ΔE 0.061
- Rich Purple #720058 ΔE 0.064
- Claret #680018 ΔE 0.064
Use #641F40 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.