#2B1803
Closest named color: Dark Brown (#341C02). oklch(23% 0.046 66.6), rgb(43, 24, 3).
Aa
White text reads best on this color (17.00:1).
About this color
#2B1803 is a very dark, muted brown. In OKLCH its lightness is 23%, its chroma 0.046 and its hue 67°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.025 away. White text reads best on it, at 17.00:1.
| Hue family | Browns |
| Lightness | very dark (23%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.23:1 |
| White text | 17.00:1 |
Values
| HEX | #2B1803 |
| RGB | rgb(43, 24, 3) |
| HSL | hsl(32, 87%, 9%) |
| OKLCH | oklch(23% 0.046 66.6) |
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 #2B1803 | 17.00:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #2B1803 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #2B1803 text on white | 17.00:1 | AAA | Lc 103.8 | Preferred for body text |
| #2B1803 text on black | 1.23:1 | 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
#F9F5F0
oklch(97.2% 0.008 73.7)
-
Step 100
100
#F1E8DF
oklch(93.6% 0.016 67.6)
-
Step 200
200
#E7D6C5
oklch(88.5% 0.03 67.4)
-
Step 300
300
#D9BA9C
oklch(80.8% 0.054 66)
-
Step 400
400
#C59665
oklch(70.7% 0.086 66.8)
-
Step 500
500
#B67B38
oklch(63.1% 0.111 66.7)
-
Step 600
600
#A1630A
oklch(55.6% 0.12 66.9)
-
Step 700
700
#895200
oklch(49.1% 0.109 66.6)
-
Step 800
800
#704304
oklch(42.7% 0.092 66.7)
-
Step 900
900
#5B3910
oklch(37.7% 0.072 66.8)
-
Step 950
950 (this color)
#2B1803
oklch(23% 0.046 66.6)
#2B1803 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) | #1E1A01 | 0.030 |
| Deuteranopia (no green cones) | #231E03 | 0.025 |
| Tritanopia (no blue cones) | #301313 | 0.036 |
| Achromatopsia (no color) | #1C1C1C | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1803
#2B1803
oklch(23% 0.046 66.6)
- #081E31
#081E31
oklch(22.8% 0.046 247.5)
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 #2B1803, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.025
- Chocolate Brown #411900 ΔE 0.051
- Jet #212529 ΔE 0.064
- Deep Brown #410200 ΔE 0.064
- Dark Maroon #3C0008 ΔE 0.068
- Dark #1B2431 ΔE 0.078
- Mahogany #4A0100 ΔE 0.078
- Rich Black #0D1B2A ΔE 0.082
Use #2B1803 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.