#553909
Closest named color: Mud Brown (#60460F). oklch(36.8% 0.072 75.2), rgb(85, 57, 9).
Aa
White text reads best on this color (10.63:1).
About this color
#553909 is a dark, moderately saturated brown. In OKLCH its lightness is 37%, its chroma 0.072 and its hue 75°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.045 away. White text reads best on it, at 10.63:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.97:1 |
| White text | 10.63:1 |
Values
| HEX | #553909 |
| RGB | rgb(85, 57, 9) |
| HSL | hsl(38, 81%, 18%) |
| OKLCH | oklch(36.8% 0.072 75.2) |
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 #553909 | 10.63:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #553909 | 1.97:1 | Fails | Lc 9.4 | Not readable |
| #553909 text on white | 10.63:1 | AAA | Lc 94.5 | Preferred for body text |
| #553909 text on black | 1.97:1 | Fails | Lc -8.1 | 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F0E9DF
oklch(93.7% 0.015 77.1)
-
Step 200
200
#E5D7C4
oklch(88.5% 0.03 75.7)
-
Step 300
300
#D5BC9A
oklch(80.8% 0.054 75.4)
-
Step 400
400
#C09962
oklch(70.7% 0.086 75.2)
-
Step 500
500
#B07F32
oklch(63.1% 0.11 75.3)
-
Step 600
600
#9B6800
oklch(55.7% 0.117 75.3)
-
Step 700
700
#825700
oklch(49.1% 0.103 75.7)
-
Step 800
800
#6B4700
oklch(42.8% 0.09 75.9)
-
Step 900
900 (this color)
#553909
oklch(36.8% 0.072 75.2)
-
Step 950
950
#33230A
oklch(27% 0.045 75.7)
#553909 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) | #433A02 | 0.036 |
| Deuteranopia (no green cones) | #4A410B | 0.030 |
| Tritanopia (no blue cones) | #5D3230 | 0.059 |
| Achromatopsia (no color) | #3E3E3E | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553909
#553909
oklch(36.8% 0.072 75.2)
- #244064
#244064
oklch(36.8% 0.071 255.4)
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 #553909, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.045
- Dark Olive #373E02 ΔE 0.058
- Green Brown #544E03 ΔE 0.064
- Chestnut #742802 ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.077
- Purple Brown #673A3F ΔE 0.079
- Pakistan Green #283618 ΔE 0.082
- Olive Brown #645403 ΔE 0.088
Use #553909 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.