#371718
Closest named color: Dark Brown (#341C02). oklch(25.2% 0.051 19.5), rgb(55, 23, 24).
Aa
White text reads best on this color (16.17:1).
About this color
#371718 is a dark, muted red. In OKLCH its lightness is 25%, its chroma 0.051 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.040 away. White text reads best on it, at 16.17:1.
| Hue family | Reds |
| Lightness | dark (25%) |
| Chroma | muted (0.051) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.29:1 |
| White text | 16.17:1 |
Values
| HEX | #371718 |
| RGB | rgb(55, 23, 24) |
| HSL | hsl(358, 41%, 15%) |
| OKLCH | oklch(25.2% 0.051 19.5) |
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 #371718 | 16.17:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #371718 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #371718 text on white | 16.17:1 | AAA | Lc 102.9 | Preferred for body text |
| #371718 text on black | 1.29:1 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F5E5E5
oklch(93.5% 0.017 17.5)
-
Step 200
200
#EFD1D0
oklch(88.5% 0.034 20.1)
-
Step 300
300
#E5B2B1
oklch(80.9% 0.06 19.8)
-
Step 400
400
#D68888
oklch(70.7% 0.096 19.7)
-
Step 500
500
#C9686B
oklch(63.1% 0.123 19.3)
-
Step 600
600
#B44D52
oklch(55.5% 0.134 19.6)
-
Step 700
700
#9B3E43
oklch(49.2% 0.125 19.7)
-
Step 800
800
#7E3337
oklch(42.6% 0.104 19.4)
-
Step 900
900
#662E30
oklch(37.8% 0.081 19.5)
-
Step 950
950 (this color)
#371718
oklch(25.2% 0.051 19.5)
#371718 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) | #1E1D18 | 0.055 |
| Deuteranopia (no green cones) | #262317 | 0.051 |
| Tritanopia (no blue cones) | #3C1318 | 0.014 |
| Achromatopsia (no color) | #212121 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #371718
#371718
oklch(25.2% 0.051 19.5)
- #00282A
#00282A
oklch(25.2% 0.043 199.9)
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 #371718, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.040
- Chocolate Brown #411900 ΔE 0.041
- Deep Brown #410200 ΔE 0.047
- Dark Maroon #3C0008 ΔE 0.048
- Mahogany #4A0100 ΔE 0.055
- Jet #212529 ΔE 0.059
- Dark Plum #3F012C ΔE 0.068
- Dark #1B2431 ΔE 0.070
Use #371718 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.