#563937
Closest named color: Purple Brown (#673A3F). oklch(37.8% 0.042 23.6), rgb(86, 57, 55).
Aa
White text reads best on this color (10.31:1).
About this color
#563937 is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.042 and its hue 24°. 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 10.31:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.03:1 |
| White text | 10.31:1 |
Values
| HEX | #563937 |
| RGB | rgb(86, 57, 55) |
| HSL | hsl(4, 22%, 28%) |
| OKLCH | oklch(37.8% 0.042 23.6) |
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 #563937 | 10.31:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #563937 | 2.03:1 | Fails | Lc 10.1 | Not readable |
| #563937 text on white | 10.31:1 | AAA | Lc 93.9 | Preferred for body text |
| #563937 text on black | 2.03:1 | Fails | Lc -8.7 | 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 900.
-
Step 50
50
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#F0E8E7
oklch(93.7% 0.009 26)
-
Step 200
200
#E5D5D4
oklch(88.6% 0.018 21.8)
-
Step 300
300
#D4B9B7
oklch(80.8% 0.031 22.9)
-
Step 400
400
#BE9592
oklch(70.7% 0.05 23.2)
-
Step 500
500
#AD7A77
oklch(63% 0.064 22.8)
-
Step 600
600
#986360
oklch(55.6% 0.069 23.1)
-
Step 700
700
#82524F
oklch(49.2% 0.065 23.6)
-
Step 800
800
#694341
oklch(42.6% 0.053 22.8)
-
Step 900
900 (this color)
#563937
oklch(37.8% 0.042 23.6)
-
Step 950
950
#322120
oklch(26.8% 0.027 22.8)
#563937 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) | #3F3D37 | 0.043 |
| Deuteranopia (no green cones) | #464337 | 0.041 |
| Tritanopia (no blue cones) | #5C3639 | 0.015 |
| Achromatopsia (no color) | #404040 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #563937
#563937
oklch(37.8% 0.042 23.6)
- #24484C
#24484C
oklch(37.7% 0.042 204.9)
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 #563937, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.049
- Onyx #343A40 ΔE 0.061
- Mud Brown #60460F ΔE 0.074
- Brownish Purple #76424E ΔE 0.077
- Chestnut #742802 ΔE 0.077
- Dark Slate Gray #2F4F4F ΔE 0.083
- Charcoal #264653 ΔE 0.084
Use #563937 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.