#5A551B
Closest named color: Olive Brown (#645403). oklch(44.2% 0.078 104.4), rgb(90, 85, 27).
Aa
White text reads best on this color (7.63:1).
About this color
#5A551B is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.078 and its hue 104°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.019 away. White text reads best on it, at 7.63:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.74:1 |
| White text | 7.63:1 |
Values
| HEX | #5A551B |
| RGB | rgb(90, 85, 27) |
| HSL | hsl(55, 54%, 23%) |
| OKLCH | oklch(44.2% 0.078 104.4) |
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 #5A551B | 7.63:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #5A551B | 2.74:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #5A551B text on white | 7.63:1 | AAA | Lc 86.5 | Fine for body text |
| #5A551B text on black | 2.74:1 | Fails | Lc -15.6 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EBEAE1
oklch(93.5% 0.012 101.5)
-
Step 200
200
#DBDAC8
oklch(88.4% 0.024 104.3)
-
Step 300
300
#C5C3A1
oklch(81% 0.046 104.6)
-
Step 400
400
#A7A36E
oklch(70.6% 0.072 104.4)
-
Step 500
500
#928C46
oklch(63% 0.092 104.3)
-
Step 600
600
#7D7625
oklch(55.6% 0.101 104.4)
-
Step 700
700
#696317
oklch(49.1% 0.094 104.7)
-
Step 800
800 (this color)
#5A551B
oklch(44.2% 0.078 104.4)
-
Step 900
900
#474319
oklch(37.7% 0.061 103.9)
-
Step 950
950
#292710
oklch(26.9% 0.038 104.2)
#5A551B 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) | #5D5214 | 0.009 |
| Deuteranopia (no green cones) | #5F551E | 0.009 |
| Tritanopia (no blue cones) | #614F49 | 0.071 |
| Achromatopsia (no color) | #535353 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A551B
#5A551B
oklch(44.2% 0.078 104.4)
- #4E4D7C
#4E4D7C
oklch(44.2% 0.076 283.8)
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 #5A551B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.019
- Green Brown #544E03 ΔE 0.027
- Army Green #4B5D16 ΔE 0.034
- Mud Brown #60460F ΔE 0.043
- Camouflage Green #4B6113 ΔE 0.044
- Greeny Brown #696006 ΔE 0.046
- Camo Green #526525 ΔE 0.047
- Mud #735C12 ΔE 0.050
Use #5A551B 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.