#311F05
Closest named color: Dark Brown (#341C02). oklch(25.6% 0.048 72.9), rgb(49, 31, 5).
Aa
White text reads best on this color (15.80:1).
About this color
#311F05 is a dark, muted brown. In OKLCH its lightness is 26%, its chroma 0.048 and its hue 73°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.010 away. White text reads best on it, at 15.80:1.
| Hue family | Browns |
| Lightness | dark (26%) |
| Chroma | muted (0.048) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.32:1 |
| White text | 15.80:1 |
Values
| HEX | #311F05 |
| RGB | rgb(49, 31, 5) |
| HSL | hsl(35, 81%, 11%) |
| OKLCH | oklch(25.6% 0.048 72.9) |
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 #311F05 | 15.80:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #311F05 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #311F05 text on white | 15.80:1 | AAA | Lc 102.6 | Preferred for body text |
| #311F05 text on black | 1.32:1 | 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
#F1E8DE
oklch(93.5% 0.017 70.5)
-
Step 200
200
#E6D6C3
oklch(88.4% 0.031 72.1)
-
Step 300
300
#D8BC99
oklch(81% 0.057 73.1)
-
Step 400
400
#C3985F
oklch(70.7% 0.09 73.3)
-
Step 500
500
#B47D2C
oklch(63.1% 0.116 72.7)
-
Step 600
600
#9D6600
oklch(55.6% 0.119 72.5)
-
Step 700
700
#845600
oklch(49.2% 0.105 73.4)
-
Step 800
800
#6D4600
oklch(42.8% 0.091 73.1)
-
Step 900
900
#5A3A07
oklch(37.7% 0.076 72.4)
-
Step 950
950 (this color)
#311F05
oklch(25.6% 0.048 72.9)
#311F05 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) | #252003 | 0.026 |
| Deuteranopia (no green cones) | #2A2406 | 0.021 |
| Tritanopia (no blue cones) | #361A1A | 0.041 |
| Achromatopsia (no color) | #232323 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311F05
#311F05
oklch(25.6% 0.048 72.9)
- #11243A
#11243A
oklch(25.6% 0.049 253.3)
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 #311F05, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.010
- Chocolate Brown #411900 ΔE 0.037
- Jet #212529 ΔE 0.058
- Deep Brown #410200 ΔE 0.070
- Pakistan Green #283618 ΔE 0.073
- Dark #1B2431 ΔE 0.076
- Mahogany #4A0100 ΔE 0.077
- Dark Maroon #3C0008 ΔE 0.079
Use #311F05 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.