#55583B
Closest named color: Olive Brown (#645403). oklch(45% 0.045 113), rgb(85, 88, 59).
Aa
White text reads best on this color (7.38:1).
About this color
#55583B is a dark, muted brown. In OKLCH its lightness is 45%, its chroma 0.045 and its hue 113°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.050 away. White text reads best on it, at 7.38:1.
| Hue family | Browns |
| Lightness | dark (45%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.84:1 |
| White text | 7.38:1 |
Values
| HEX | #55583B |
| RGB | rgb(85, 88, 59) |
| HSL | hsl(66, 20%, 29%) |
| OKLCH | oklch(45% 0.045 113) |
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 #55583B | 7.38:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #55583B | 2.84:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #55583B text on white | 7.38:1 | AAA | Lc 85.6 | Fine for body text |
| #55583B text on black | 2.84:1 | Fails | Lc -16.4 | Dividers and decoration only |
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 800.
-
Step 50
50
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#D9DAD0
oklch(88.5% 0.014 111.3)
-
Step 300
300
#C0C3B0
oklch(81% 0.026 114.3)
-
Step 400
400
#A0A486
oklch(70.7% 0.042 113.7)
-
Step 500
500
#898D68
oklch(63% 0.053 112.9)
-
Step 600
600
#73774F
oklch(55.5% 0.058 112.9)
-
Step 700
700
#616440
oklch(49.1% 0.054 112.2)
-
Step 800
800 (this color)
#55583B
oklch(45% 0.045 113)
-
Step 900
900
#41442E
oklch(37.7% 0.036 114.4)
-
Step 950
950
#26281B
oklch(27.1% 0.023 115.1)
#55583B 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) | #5C5539 | 0.013 |
| Deuteranopia (no green cones) | #5C563C | 0.013 |
| Tritanopia (no blue cones) | #595550 | 0.038 |
| Achromatopsia (no color) | #565656 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55583B
#55583B
oklch(45% 0.045 113)
- #56516C
#56516C
oklch(45% 0.044 293)
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 #55583B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.050
- Army Green #4B5D16 ΔE 0.053
- Green Brown #544E03 ΔE 0.054
- Camo Green #526525 ΔE 0.056
- Pine #2B5D34 ΔE 0.058
- Mud Brown #60460F ΔE 0.059
- Camouflage Green #4B6113 ΔE 0.062
- Mud #735C12 ΔE 0.064
Use #55583B 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.