#AA5B1B
Closest named color: Raw Umber (#A75E09). oklch(55.4% 0.126 54.1), rgb(170, 91, 27).
Aa
White text reads best on this color (4.97:1).
About this color
#AA5B1B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 55%, its chroma 0.126 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Raw Umber (#A75E09), ΔE 0.014 away. White text reads best on it, at 4.97:1.
| Hue family | Browns |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Raw Umber (#A75E09) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #AA5B1B |
| RGB | rgb(170, 91, 27) |
| HSL | hsl(27, 73%, 39%) |
| OKLCH | oklch(55.4% 0.126 54.1) |
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 #AA5B1B | 4.97:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #AA5B1B | 4.22:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #AA5B1B text on white | 4.97:1 | AA | Lc 74.0 | Content text, not long reading |
| #AA5B1B text on black | 4.22:1 | AA large text | Lc -27.7 | 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 600.
-
Step 50
50
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E0
oklch(93.6% 0.016 52.6)
-
Step 200
200
#EBD4C6
oklch(88.5% 0.032 53.5)
-
Step 300
300
#DFB79F
oklch(80.9% 0.057 52.6)
-
Step 400
400
#CD9169
oklch(70.6% 0.091 54.4)
-
Step 500
500
#BF7440
oklch(63% 0.116 53.6)
-
Step 600
600 (this color)
#AA5B1B
oklch(55.4% 0.126 54.1)
-
Step 700
700
#924B0C
oklch(49.1% 0.117 54.4)
-
Step 800
800
#773E10
oklch(42.8% 0.097 54.1)
-
Step 900
900
#603516
oklch(37.7% 0.076 53.7)
-
Step 950
950
#381F0E
oklch(26.8% 0.048 53.4)
#AA5B1B 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) | #72650F | 0.104 |
| Deuteranopia (no green cones) | #85771A | 0.094 |
| Tritanopia (no blue cones) | #BB494F | 0.083 |
| Achromatopsia (no color) | #707070 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA5B1B
#AA5B1B
oklch(55.4% 0.126 54.1)
- #007DAC
#007DAC
oklch(55.5% 0.116 233.8)
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 #AA5B1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raw Umber #A75E09 ΔE 0.014
- Orangey Brown #B16002 ΔE 0.022
- Cinnamon #AC4F06 ΔE 0.026
- Burnt Siena #B75203 ΔE 0.028
- Umber #B26400 ΔE 0.031
- Copper #B66325 ΔE 0.031
- Earth #A2653E ΔE 0.033
- Sepia #985E2B ΔE 0.033
Use #AA5B1B 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.