#1F180D
Closest named color: Dark Brown (#341C02). oklch(21.4% 0.023 78.4), rgb(31, 24, 13).
Aa
White text reads best on this color (17.57:1).
About this color
#1F180D is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.051 away. White text reads best on it, at 17.57:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.19:1 |
| White text | 17.57:1 |
Values
| HEX | #1F180D |
| RGB | rgb(31, 24, 13) |
| HSL | hsl(37, 41%, 9%) |
| OKLCH | oklch(21.4% 0.023 78.4) |
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 #1F180D | 17.57:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #1F180D | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #1F180D text on white | 17.57:1 | AAA | Lc 104.4 | Preferred for body text |
| #1F180D text on black | 1.19:1 | 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
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#EDE9E4
oklch(93.6% 0.008 73.7)
-
Step 200
200
#DFD8CE
oklch(88.5% 0.016 77.1)
-
Step 300
300
#CABFAE
oklch(80.9% 0.026 78.9)
-
Step 400
400
#B09E83
oklch(70.8% 0.043 77.9)
-
Step 500
500
#9C8664
oklch(63.2% 0.055 78.3)
-
Step 600
600
#876F4A
oklch(55.6% 0.061 77.8)
-
Step 700
700
#725D3C
oklch(49.1% 0.055 78.2)
-
Step 800
800
#5D4C32
oklch(42.7% 0.046 77.7)
-
Step 900
900
#4C3F2C
oklch(37.6% 0.035 76.8)
-
Step 950
950 (this color)
#1F180D
oklch(21.4% 0.023 78.4)
#1F180D 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) | #1B180C | 0.009 |
| Deuteranopia (no green cones) | #1D1A0D | 0.008 |
| Tritanopia (no blue cones) | #221615 | 0.020 |
| Achromatopsia (no color) | #191919 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F180D
#1F180D
oklch(21.4% 0.023 78.4)
- #131A24
#131A24
oklch(21.6% 0.022 257.3)
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 #1F180D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.051
- Jet #212529 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.058
- Dark #1B2431 ΔE 0.067
- Almost Black #070D0D ΔE 0.068
- Rich Navy #001219 ΔE 0.069
- Very Dark Brown #1D0200 ΔE 0.075
- Chocolate Brown #411900 ΔE 0.077
Use #1F180D 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.