#400315
Closest named color: Dark Maroon (#3C0008). oklch(24.1% 0.091 10.5), rgb(64, 3, 21).
Aa
White text reads best on this color (16.91:1).
About this color
#400315 is a very dark, moderately saturated red. In OKLCH its lightness is 24%, its chroma 0.091 and its hue 11°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.022 away. White text reads best on it, at 16.91:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.24:1 |
| White text | 16.91:1 |
Values
| HEX | #400315 |
| RGB | rgb(64, 3, 21) |
| HSL | hsl(342, 91%, 13%) |
| OKLCH | oklch(24.1% 0.091 10.5) |
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 #400315 | 16.91:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #400315 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #400315 text on white | 16.91:1 | AAA | Lc 102.9 | Preferred for body text |
| #400315 text on black | 1.24:1 | 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
#FFF2F3
oklch(97.2% 0.014 12)
-
Step 100
100
#FEE2E5
oklch(93.6% 0.031 10.3)
-
Step 200
200
#FECAD0
oklch(88.6% 0.059 10.6)
-
Step 300
300
#FDA3B0
oklch(80.8% 0.108 10.3)
-
Step 400
400
#F76B87
oklch(70.6% 0.173 10.3)
-
Step 500
500
#EF3569
oklch(63.1% 0.22 10.6)
-
Step 600
600
#D40054
oklch(55.6% 0.222 10.3)
-
Step 700
700
#B40045
oklch(49.2% 0.197 10.8)
-
Step 800
800
#950038
oklch(42.8% 0.171 10.6)
-
Step 900
900
#7B0A2F
oklch(37.8% 0.143 10.6)
-
Step 950
950 (this color)
#400315
oklch(24.1% 0.091 10.5)
#400315 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) | #141515 | 0.104 |
| Deuteranopia (no green cones) | #242113 | 0.093 |
| Tritanopia (no blue cones) | #47000A | 0.023 |
| Achromatopsia (no color) | #1D1D1D | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400315
#400315
oklch(24.1% 0.091 10.5)
- #002624
#002624
oklch(24.2% 0.042 189.5)
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 #400315, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.022
- Deep Brown #410200 ΔE 0.032
- Mahogany #4A0100 ΔE 0.039
- Dark Plum #3F012C ΔE 0.045
- Aubergine #3D0734 ΔE 0.058
- Eggplant #380835 ΔE 0.064
- Chocolate Brown #411900 ΔE 0.064
- Dark Brown #341C02 ΔE 0.075
Use #400315 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.