#641A01
Closest named color: Reddy Brown (#6E1005). oklch(33.8% 0.111 37.3), rgb(100, 26, 1).
Aa
White text reads best on this color (12.42:1).
About this color
#641A01 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.111 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.025 away. White text reads best on it, at 12.42:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.111) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.69:1 |
| White text | 12.42:1 |
Values
| HEX | #641A01 |
| RGB | rgb(100, 26, 1) |
| HSL | hsl(15, 98%, 20%) |
| OKLCH | oklch(33.8% 0.111 37.3) |
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 #641A01 | 12.42:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #641A01 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #641A01 text on white | 12.42:1 | AAA | Lc 97.2 | Preferred for body text |
| #641A01 text on black | 1.69:1 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#F9E5DF
oklch(93.6% 0.023 37.4)
-
Step 200
200
#F6CFC4
oklch(88.5% 0.047 36.3)
-
Step 300
300
#F1AE9A
oklch(80.9% 0.084 37.3)
-
Step 400
400
#E68062
oklch(70.6% 0.133 37.2)
-
Step 500
500
#DC5B34
oklch(63.1% 0.171 37.2)
-
Step 600
600
#C73B00
oklch(55.5% 0.185 37.2)
-
Step 700
700
#A93100
oklch(49.2% 0.163 37.3)
-
Step 800
800
#8B2700
oklch(42.7% 0.141 37.5)
-
Step 900
900 (this color)
#641A01
oklch(33.8% 0.111 37.3)
-
Step 950
950
#42170A
oklch(26.9% 0.071 37.3)
#641A01 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) | #312A00 | 0.112 |
| Deuteranopia (no green cones) | #433A00 | 0.101 |
| Tritanopia (no blue cones) | #6F0016 | 0.044 |
| Achromatopsia (no color) | #343434 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641A01
#641A01
oklch(33.8% 0.111 37.3)
- #003F4C
#003F4C
oklch(33.9% 0.061 217)
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 #641A01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.025
- Blood #770001 ΔE 0.045
- Claret #680018 ΔE 0.045
- Chestnut #742802 ΔE 0.049
- Maroon #800000 ΔE 0.061
- Burgundy #610023 ΔE 0.063
- Wine Red #7B0323 ΔE 0.067
- Bordeaux #7B002C ΔE 0.077
Use #641A01 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.