#673308
Closest named color: Chestnut (#742802). oklch(38.2% 0.09 53.6), rgb(103, 51, 8).
Aa
White text reads best on this color (10.22:1).
About this color
#673308 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.090 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.033 away. White text reads best on it, at 10.22:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.05:1 |
| White text | 10.22:1 |
Values
| HEX | #673308 |
| RGB | rgb(103, 51, 8) |
| HSL | hsl(27, 86%, 22%) |
| OKLCH | oklch(38.2% 0.09 53.6) |
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 #673308 | 10.22:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #673308 | 2.05:1 | Fails | Lc 10.6 | Not readable |
| #673308 text on white | 10.22:1 | AAA | Lc 93.3 | Preferred for body text |
| #673308 text on black | 2.05:1 | Fails | Lc -9.2 | 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 900.
-
Step 50
50
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E7DE
oklch(93.7% 0.02 55.1)
-
Step 200
200
#EED3C2
oklch(88.5% 0.038 54.3)
-
Step 300
300
#E4B598
oklch(80.8% 0.068 53.2)
-
Step 400
400
#D58D5D
oklch(70.6% 0.108 53.8)
-
Step 500
500
#C96E2A
oklch(63.1% 0.139 53.1)
-
Step 600
600
#B05700
oklch(55.5% 0.14 53.4)
-
Step 700
700
#954900
oklch(49.2% 0.124 53.7)
-
Step 800
800
#7B3B00
oklch(42.8% 0.108 53.6)
-
Step 900
900 (this color)
#673308
oklch(38.2% 0.09 53.6)
-
Step 950
950
#3C1E07
oklch(27.2% 0.058 54.6)
#673308 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) | #423A01 | 0.076 |
| Deuteranopia (no green cones) | #4F4507 | 0.066 |
| Tritanopia (no blue cones) | #72272B | 0.058 |
| Achromatopsia (no color) | #414141 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673308
#673308
oklch(38.2% 0.09 53.6)
- #004966
#004966
oklch(38.2% 0.079 233.4)
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 #673308, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.033
- Mud Brown #60460F ΔE 0.052
- Purple Brown #673A3F ΔE 0.063
- Reddy Brown #6E1005 ΔE 0.067
- Rust Brown #8B3103 ΔE 0.074
- Red Brown #8B2E16 ΔE 0.076
- Blood #770001 ΔE 0.079
- Maroon #800000 ΔE 0.081
Use #673308 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.