#370A00
Closest named color: Deep Brown (#410200). oklch(22.6% 0.075 37.6), rgb(55, 10, 0).
Aa
White text reads best on this color (17.41:1).
About this color
#370A00 is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.075 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.026 away. White text reads best on it, at 17.41:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.20:1 |
| White text | 17.41:1 |
Values
| HEX | #370A00 |
| RGB | rgb(55, 10, 0) |
| HSL | hsl(11, 100%, 11%) |
| OKLCH | oklch(22.6% 0.075 37.6) |
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 #370A00 | 17.41:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #370A00 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #370A00 text on white | 17.41:1 | AAA | Lc 103.7 | Preferred for body text |
| #370A00 text on black | 1.20:1 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE4DE
oklch(93.5% 0.026 35.7)
-
Step 200
200
#F7CFC2
oklch(88.5% 0.049 38.8)
-
Step 300
300
#F3AD98
oklch(80.9% 0.088 37.4)
-
Step 400
400
#EA7E5D
oklch(70.7% 0.141 37.8)
-
Step 500
500
#E0572B
oklch(63.1% 0.18 37.5)
-
Step 600
600
#C73C00
oklch(55.6% 0.184 37.5)
-
Step 700
700
#A83100
oklch(49% 0.162 37.4)
-
Step 800
800
#8B2700
oklch(42.7% 0.141 37.5)
-
Step 900
900
#732307
oklch(37.8% 0.118 37.4)
-
Step 950
950 (this color)
#370A00
oklch(22.6% 0.075 37.6)
#370A00 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) | #181400 | 0.075 |
| Deuteranopia (no green cones) | #231E00 | 0.068 |
| Tritanopia (no blue cones) | #3E0008 | 0.030 |
| Achromatopsia (no color) | #1A1A1A | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370A00
#370A00
oklch(22.6% 0.075 37.6)
- #002028
#002028
oklch(22.5% 0.04 217.6)
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 #370A00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.026
- Dark Maroon #3C0008 ΔE 0.029
- Dark Brown #341C02 ΔE 0.046
- Mahogany #4A0100 ΔE 0.046
- Chocolate Brown #411900 ΔE 0.046
- Very Dark Brown #1D0200 ΔE 0.078
- Dark Plum #3F012C ΔE 0.086
- Jet #212529 ΔE 0.091
Use #370A00 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.