#641B35
Closest named color: Merlot (#730039). oklch(34.9% 0.107 2.7), rgb(100, 27, 53).
Aa
White text reads best on this color (11.99:1).
About this color
#641B35 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.107 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.041 away. White text reads best on it, at 11.99:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.107) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.75:1 |
| White text | 11.99:1 |
Values
| HEX | #641B35 |
| RGB | rgb(100, 27, 53) |
| HSL | hsl(339, 57%, 25%) |
| OKLCH | oklch(34.9% 0.107 2.7) |
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 #641B35 | 11.99:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #641B35 | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #641B35 text on white | 11.99:1 | AAA | Lc 96.6 | Preferred for body text |
| #641B35 text on black | 1.75:1 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F8E4E8
oklch(93.6% 0.022 3.8)
-
Step 200
200
#F4CED6
oklch(88.6% 0.044 3.8)
-
Step 300
300
#EEABBC
oklch(80.9% 0.081 2.4)
-
Step 400
400
#E27C99
oklch(70.7% 0.129 2.8)
-
Step 500
500
#D65780
oklch(63.1% 0.164 2.9)
-
Step 600
600
#C1376A
oklch(55.6% 0.178 2.5)
-
Step 700
700
#A62858
oklch(49.1% 0.165 2.7)
-
Step 800
800
#872348
oklch(42.7% 0.138 2.6)
-
Step 900
900 (this color)
#641B35
oklch(34.9% 0.107 2.7)
-
Step 950
950
#401623
oklch(27% 0.067 3.3)
#641B35 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) | #2A2D36 | 0.120 |
| Deuteranopia (no green cones) | #3E3C33 | 0.109 |
| Tritanopia (no blue cones) | #6D1126 | 0.029 |
| Achromatopsia (no color) | #363636 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641B35
#641B35
oklch(34.9% 0.107 2.7)
- #00443D
#00443D
oklch(34.7% 0.062 183.4)
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 #641B35, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.041
- Burgundy #610023 ΔE 0.041
- Claret #680018 ΔE 0.046
- Bordeaux #7B002C ΔE 0.051
- Wine Red #7B0323 ΔE 0.055
- Grape Purple #5D1451 ΔE 0.059
- Reddy Brown #6E1005 ΔE 0.061
- Wine #80013F ΔE 0.063
Use #641B35 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.