#40131B
Closest named color: Deep Brown (#410200). oklch(26.3% 0.07 12.6), rgb(64, 19, 27).
Aa
White text reads best on this color (15.82:1).
About this color
#40131B is a dark, moderately saturated red. In OKLCH its lightness is 26%, its chroma 0.070 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.043 away. White text reads best on it, at 15.82:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.070) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.32:1 |
| White text | 15.82:1 |
Values
| HEX | #40131B |
| RGB | rgb(64, 19, 27) |
| HSL | hsl(349, 54%, 16%) |
| OKLCH | oklch(26.3% 0.07 12.6) |
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 #40131B | 15.82:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #40131B | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #40131B text on white | 15.82:1 | AAA | Lc 102.4 | Preferred for body text |
| #40131B text on black | 1.32:1 | 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 950.
-
Step 50
50
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E5
oklch(93.7% 0.024 14.4)
-
Step 200
200
#F6CDD1
oklch(88.4% 0.047 11.4)
-
Step 300
300
#F1ABB2
oklch(80.9% 0.083 12.5)
-
Step 400
400
#E77B89
oklch(70.7% 0.134 12.9)
-
Step 500
500
#DC546C
oklch(63.1% 0.17 12.8)
-
Step 600
600
#C73254
oklch(55.6% 0.185 12.8)
-
Step 700
700
#AC2245
oklch(49.2% 0.173 12.5)
-
Step 800
800
#8B2039
oklch(42.7% 0.142 12.4)
-
Step 900
900
#702131
oklch(37.6% 0.111 12.3)
-
Step 950
950 (this color)
#40131B
oklch(26.3% 0.07 12.6)
#40131B 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) | #1D1D1B | 0.078 |
| Deuteranopia (no green cones) | #29261A | 0.071 |
| Tritanopia (no blue cones) | #460C16 | 0.017 |
| Achromatopsia (no color) | #222222 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40131B
#40131B
oklch(26.3% 0.07 12.6)
- #002B2A
#002B2A
oklch(26.1% 0.045 192.4)
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 #40131B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.043
- Mahogany #4A0100 ΔE 0.043
- Dark Maroon #3C0008 ΔE 0.044
- Chocolate Brown #411900 ΔE 0.045
- Dark Plum #3F012C ΔE 0.055
- Dark Brown #341C02 ΔE 0.057
- Aubergine #3D0734 ΔE 0.060
- Eggplant #380835 ΔE 0.066
Use #40131B 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.