#673504
Closest named color: Chestnut (#742802). oklch(38.6% 0.091 57), rgb(103, 53, 4).
Aa
White text reads best on this color (10.05:1).
About this color
#673504 is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.091 and its hue 57°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.037 away. White text reads best on it, at 10.05:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #673504 |
| RGB | rgb(103, 53, 4) |
| HSL | hsl(30, 93%, 21%) |
| OKLCH | oklch(38.6% 0.091 57) |
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 #673504 | 10.05:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #673504 | 2.08:1 | Fails | Lc 11.0 | Not readable |
| #673504 text on white | 10.05:1 | AAA | Lc 92.9 | Preferred for body text |
| #673504 text on black | 2.08:1 | Fails | Lc -9.5 | 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
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F5E7DD
oklch(93.6% 0.02 58.1)
-
Step 200
200
#EDD3C2
oklch(88.4% 0.037 55.3)
-
Step 300
300
#E3B696
oklch(80.9% 0.068 57)
-
Step 400
400
#D48E5A
oklch(70.6% 0.109 56.5)
-
Step 500
500
#C77022
oklch(63.1% 0.139 56.8)
-
Step 600
600
#AC5B00
oklch(55.6% 0.134 57.3)
-
Step 700
700
#914C00
oklch(49.1% 0.118 57.5)
-
Step 800
800
#783D00
oklch(42.7% 0.104 56.7)
-
Step 900
900 (this color)
#673504
oklch(38.6% 0.091 57)
-
Step 950
950
#3B1E06
oklch(27% 0.057 56.5)
#673504 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) | #443B00 | 0.071 |
| Deuteranopia (no green cones) | #504604 | 0.063 |
| Tritanopia (no blue cones) | #722A2C | 0.060 |
| Achromatopsia (no color) | #424242 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673504
#673504
oklch(38.6% 0.091 57)
- #004A6B
#004A6B
oklch(38.7% 0.084 236.5)
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 #673504, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.037
- Mud Brown #60460F ΔE 0.046
- Purple Brown #673A3F ΔE 0.066
- Reddy Brown #6E1005 ΔE 0.073
- Rust Brown #8B3103 ΔE 0.074
- Red Brown #8B2E16 ΔE 0.077
- Green Brown #544E03 ΔE 0.078
- Blood #770001 ΔE 0.084
Use #673504 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.