#231B06
Closest named color: Dark Brown (#341C02). oklch(22.6% 0.037 88.7), rgb(35, 27, 6).
Aa
White text reads best on this color (17.06:1).
About this color
#231B06 is a very dark, muted brown. In OKLCH its lightness is 23%, its chroma 0.037 and its hue 89°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.037 away. White text reads best on it, at 17.06:1.
| Hue family | Browns |
| Lightness | very dark (23%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.23:1 |
| White text | 17.06:1 |
Values
| HEX | #231B06 |
| RGB | rgb(35, 27, 6) |
| HSL | hsl(43, 71%, 8%) |
| OKLCH | oklch(22.6% 0.037 88.7) |
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 #231B06 | 17.06:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #231B06 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #231B06 text on white | 17.06:1 | AAA | Lc 103.9 | Preferred for body text |
| #231B06 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
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EDEAE1
oklch(93.7% 0.012 91.5)
-
Step 200
200
#DFD9C8
oklch(88.5% 0.024 90.8)
-
Step 300
300
#CCC0A1
oklch(81% 0.044 89.4)
-
Step 400
400
#B29F6E
oklch(70.7% 0.07 89.2)
-
Step 500
500
#9F8746
oklch(63.1% 0.089 89.5)
-
Step 600
600
#8A7026
oklch(55.6% 0.096 89.1)
-
Step 700
700
#755D18
oklch(49% 0.089 88.6)
-
Step 800
800
#604C17
oklch(42.7% 0.074 87.7)
-
Step 900
900
#4E401A
oklch(37.7% 0.058 89.2)
-
Step 950
950 (this color)
#231B06
oklch(22.6% 0.037 88.7)
#231B06 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) | #1F1B04 | 0.010 |
| Deuteranopia (no green cones) | #211D07 | 0.007 |
| Tritanopia (no blue cones) | #271816 | 0.033 |
| Achromatopsia (no color) | #1C1C1C | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231B06
#231B06
oklch(22.6% 0.037 88.7)
- #151B2D
#151B2D
oklch(22.6% 0.036 269.3)
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 #231B06, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.037
- Jet #212529 ΔE 0.058
- Chocolate Brown #411900 ΔE 0.066
- Dark #1B2431 ΔE 0.072
- Rich Black #0D1B2A ΔE 0.072
- Dark Forest Green #002D04 ΔE 0.076
- Very Dark Green #062E03 ΔE 0.077
- Deep Brown #410200 ΔE 0.082
Use #231B06 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.