#370E01
Closest named color: Deep Brown (#410200). oklch(23.2% 0.07 40.1), rgb(55, 14, 1).
Aa
White text reads best on this color (17.13:1).
About this color
#370E01 is a very dark, muted brown. In OKLCH its lightness is 23%, its chroma 0.070 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.029 away. White text reads best on it, at 17.13:1.
| Hue family | Browns |
| Lightness | very dark (23%) |
| Chroma | muted (0.070) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.22:1 |
| White text | 17.13:1 |
Values
| HEX | #370E01 |
| RGB | rgb(55, 14, 1) |
| HSL | hsl(14, 96%, 11%) |
| OKLCH | oklch(23.2% 0.07 40.1) |
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 #370E01 | 17.13:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #370E01 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #370E01 text on white | 17.13:1 | AAA | Lc 103.6 | Preferred for body text |
| #370E01 text on black | 1.22:1 | 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
#F9E5DE
oklch(93.6% 0.024 40.3)
-
Step 200
200
#F5D0C3
oklch(88.6% 0.045 40.3)
-
Step 300
300
#F0AF98
oklch(80.9% 0.083 40.3)
-
Step 400
400
#E5825E
oklch(70.7% 0.132 40.5)
-
Step 500
500
#DB5D2C
oklch(63.1% 0.17 40.1)
-
Step 600
600
#C34300
oklch(55.7% 0.174 40.1)
-
Step 700
700
#A53700
oklch(49.2% 0.154 40)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#702708
oklch(37.8% 0.111 40.1)
-
Step 950
950 (this color)
#370E01
oklch(23.2% 0.07 40.1)
#370E01 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) | #1A1600 | 0.070 |
| Deuteranopia (no green cones) | #241F00 | 0.063 |
| Tritanopia (no blue cones) | #3E040B | 0.032 |
| Achromatopsia (no color) | #1C1C1C | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370E01
#370E01
oklch(23.2% 0.07 40.1)
- #00222B
#00222B
oklch(23.3% 0.042 219.2)
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 #370E01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.029
- Dark Maroon #3C0008 ΔE 0.035
- Dark Brown #341C02 ΔE 0.037
- Chocolate Brown #411900 ΔE 0.040
- Mahogany #4A0100 ΔE 0.046
- Very Dark Brown #1D0200 ΔE 0.082
- Jet #212529 ΔE 0.084
- Dark Plum #3F012C ΔE 0.087
Use #370E01 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.