#641B1E
Closest named color: Reddy Brown (#6E1005). oklch(34.3% 0.105 22.4), rgb(100, 27, 30).
Aa
White text reads best on this color (12.22:1).
About this color
#641B1E is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.105 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.030 away. White text reads best on it, at 12.22:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.71:1 |
| White text | 12.22:1 |
Values
| HEX | #641B1E |
| RGB | rgb(100, 27, 30) |
| HSL | hsl(358, 57%, 25%) |
| OKLCH | oklch(34.3% 0.105 22.4) |
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 #641B1E | 12.22:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #641B1E | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #641B1E text on white | 12.22:1 | AAA | Lc 97.0 | Preferred for body text |
| #641B1E text on black | 1.71:1 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E3
oklch(93.5% 0.023 20.9)
-
Step 200
200
#F5CFCC
oklch(88.6% 0.043 23.3)
-
Step 300
300
#EFADA9
oklch(80.8% 0.078 22.8)
-
Step 400
400
#E47F7C
oklch(70.7% 0.125 22.5)
-
Step 500
500
#D95A5B
oklch(63% 0.16 22.4)
-
Step 600
600
#C53B41
oklch(55.7% 0.174 22.6)
-
Step 700
700
#A92B33
oklch(49% 0.162 22.3)
-
Step 800
800
#8A262B
oklch(42.8% 0.135 22.3)
-
Step 900
900 (this color)
#641B1E
oklch(34.3% 0.105 22.4)
-
Step 950
950
#411717
oklch(27% 0.066 22.5)
#641B1E 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) | #2F2B1E | 0.113 |
| Deuteranopia (no green cones) | #413B1C | 0.105 |
| Tritanopia (no blue cones) | #6E071D | 0.029 |
| Achromatopsia (no color) | #353535 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641B1E
#641B1E
oklch(34.3% 0.105 22.4)
- #004146
#004146
oklch(34.2% 0.058 203.4)
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 #641B1E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.030
- Claret #680018 ΔE 0.031
- Burgundy #610023 ΔE 0.043
- Blood #770001 ΔE 0.047
- Wine Red #7B0323 ΔE 0.052
- Chestnut #742802 ΔE 0.058
- Bordeaux #7B002C ΔE 0.058
- Maroon #800000 ΔE 0.062
Use #641B1E 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.