#673313
Closest named color: Chestnut (#742802). oklch(38.3% 0.086 49.1), rgb(103, 51, 19).
Aa
White text reads best on this color (10.19:1).
About this color
#673313 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.086 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.032 away. White text reads best on it, at 10.19:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.05:1 |
| White text | 10.19:1 |
Values
| HEX | #673313 |
| RGB | rgb(103, 51, 19) |
| HSL | hsl(23, 69%, 24%) |
| OKLCH | oklch(38.3% 0.086 49.1) |
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 #673313 | 10.19:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #673313 | 2.05:1 | Fails | Lc 10.7 | Not readable |
| #673313 text on white | 10.19:1 | AAA | Lc 93.3 | Preferred for body text |
| #673313 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
#F5E7DF
oklch(93.7% 0.019 52)
-
Step 200
200
#EED3C5
oklch(88.6% 0.036 49.2)
-
Step 300
300
#E4B59C
oklch(80.9% 0.065 49.4)
-
Step 400
400
#D58D65
oklch(70.8% 0.104 49.5)
-
Step 500
500
#C86E39
oklch(63.1% 0.132 49)
-
Step 600
600
#B4540D
oklch(55.7% 0.144 49.1)
-
Step 700
700
#994400
oklch(49% 0.131 49)
-
Step 800
800
#7D3806
oklch(42.6% 0.111 48.9)
-
Step 900
900 (this color)
#673313
oklch(38.3% 0.086 49.1)
-
Step 950
950
#3B1D0C
oklch(26.9% 0.054 48.5)
#673313 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) | #423A0F | 0.075 |
| Deuteranopia (no green cones) | #4E4612 | 0.070 |
| Tritanopia (no blue cones) | #71282C | 0.050 |
| Achromatopsia (no color) | #414141 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673313
#673313
oklch(38.3% 0.086 49.1)
- #004A63
#004A63
oklch(38.3% 0.076 229.2)
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 #673313, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.032
- Mud Brown #60460F ΔE 0.055
- Purple Brown #673A3F ΔE 0.055
- Reddy Brown #6E1005 ΔE 0.064
- Rust Brown #8B3103 ΔE 0.074
- Red Brown #8B2E16 ΔE 0.074
- Blood #770001 ΔE 0.076
- Maroon #800000 ΔE 0.079
Use #673313 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.