#6B421F
Closest named color: Mud Brown (#60460F). oklch(42% 0.075 59), rgb(107, 66, 31).
Aa
White text reads best on this color (8.66:1).
About this color
#6B421F is a dark, moderately saturated brown. In OKLCH its lightness is 42%, its chroma 0.075 and its hue 59°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.031 away. White text reads best on it, at 8.66:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.42:1 |
| White text | 8.66:1 |
Values
| HEX | #6B421F |
| RGB | rgb(107, 66, 31) |
| HSL | hsl(28, 55%, 27%) |
| OKLCH | oklch(42% 0.075 59) |
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 #6B421F | 8.66:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #6B421F | 2.42:1 | Fails | Lc 14.5 | Not readable |
| #6B421F text on white | 8.66:1 | AAA | Lc 89.5 | Fine for body text |
| #6B421F text on black | 2.42:1 | Fails | Lc -12.7 | 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 800.
-
Step 50
50
#F9F5F2
oklch(97.2% 0.006 59.7)
-
Step 100
100
#F1E8E2
oklch(93.6% 0.013 56.2)
-
Step 200
200
#E6D6CA
oklch(88.6% 0.024 59.4)
-
Step 300
300
#D7BAA5
oklch(80.8% 0.044 58)
-
Step 400
400
#C29675
oklch(70.6% 0.07 58.2)
-
Step 500
500
#B27C50
oklch(63.1% 0.09 59.3)
-
Step 600
600
#9D6434
oklch(55.6% 0.097 58.8)
-
Step 700
700
#865326
oklch(49.1% 0.091 59.5)
-
Step 800
800 (this color)
#6B421F
oklch(42% 0.075 59)
-
Step 900
900
#593A20
oklch(37.8% 0.059 59.6)
-
Step 950
950
#342213
oklch(27% 0.037 60.1)
#6B421F 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) | #4E461B | 0.056 |
| Deuteranopia (no green cones) | #584F1F | 0.050 |
| Tritanopia (no blue cones) | #75393A | 0.054 |
| Achromatopsia (no color) | #4B4B4B | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B421F
#6B421F
oklch(42% 0.075 59)
- #1F5271
#1F5271
oklch(41.9% 0.075 238.9)
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 #6B421F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.031
- Milk Chocolate #7F4E1E ΔE 0.054
- Purple Brown #673A3F ΔE 0.057
- Chestnut #742802 ΔE 0.060
- Medium Brown #7F5112 ΔE 0.062
- Olive Brown #645403 ΔE 0.062
- Green Brown #544E03 ΔE 0.063
- Saddle Brown #8B4513 ΔE 0.064
Use #6B421F 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.