#673B27
Closest named color: Purple Brown (#673A3F). oklch(40.1% 0.07 44.7), rgb(103, 59, 39).
Aa
White text reads best on this color (9.41:1).
About this color
#673B27 is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.070 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.037 away. White text reads best on it, at 9.41:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.070) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.23:1 |
| White text | 9.41:1 |
Values
| HEX | #673B27 |
| RGB | rgb(103, 59, 39) |
| HSL | hsl(19, 45%, 28%) |
| OKLCH | oklch(40.1% 0.07 44.7) |
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 #673B27 | 9.41:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #673B27 | 2.23:1 | Fails | Lc 12.4 | Not readable |
| #673B27 text on white | 9.41:1 | AAA | Lc 91.5 | Preferred for body text |
| #673B27 text on black | 2.23:1 | Fails | Lc -10.8 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E2
oklch(93.6% 0.015 44.2)
-
Step 200
200
#EBD4CA
oklch(88.6% 0.029 45)
-
Step 300
300
#DFB7A5
oklch(81% 0.053 45.5)
-
Step 400
400
#CD9075
oklch(70.7% 0.084 44.8)
-
Step 500
500
#BF7351
oklch(63.1% 0.107 44.5)
-
Step 600
600
#AA5A35
oklch(55.5% 0.116 44.4)
-
Step 700
700
#924A27
oklch(49.2% 0.108 45)
-
Step 800
800
#763D22
oklch(42.6% 0.089 44.8)
-
Step 900
900 (this color)
#673B27
oklch(40.1% 0.07 44.7)
-
Step 950
950
#381F14
oklch(27% 0.044 44.2)
#673B27 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) | #474025 | 0.062 |
| Deuteranopia (no green cones) | #514A27 | 0.058 |
| Tritanopia (no blue cones) | #703336 | 0.039 |
| Achromatopsia (no color) | #464646 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673B27
#673B27
oklch(40.1% 0.07 44.7)
- #0F5064
#0F5064
oklch(40.2% 0.069 224)
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 #673B27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.037
- Mud Brown #60460F ΔE 0.048
- Chestnut #742802 ΔE 0.048
- Brownish Purple #76424E ΔE 0.065
- Red Brown #8B2E16 ΔE 0.073
- Rust Brown #8B3103 ΔE 0.073
- Milk Chocolate #7F4E1E ΔE 0.076
- Green Brown #544E03 ΔE 0.081
Use #673B27 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.