#AA360F
Closest named color: Rusty Red (#AF2F0D). oklch(50% 0.159 36.8), rgb(170, 54, 15).
Aa
White text reads best on this color (6.47:1).
About this color
#AA360F is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.159 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.013 away. White text reads best on it, at 6.47:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #AA360F |
| RGB | rgb(170, 54, 15) |
| HSL | hsl(15, 84%, 36%) |
| OKLCH | oklch(50% 0.159 36.8) |
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 #AA360F | 6.47:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #AA360F | 3.24:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #AA360F text on white | 6.47:1 | AA | Lc 81.0 | Fine for body text |
| #AA360F text on black | 3.24:1 | AA large text | Lc -20.8 | 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 700.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F4D0C6
oklch(88.5% 0.043 36)
-
Step 300
300
#EDB09E
oklch(80.9% 0.076 37.1)
-
Step 400
400
#E28469
oklch(70.8% 0.123 36.9)
-
Step 500
500
#D6603E
oklch(63% 0.157 36.8)
-
Step 600
600
#C2431A
oklch(55.6% 0.17 37)
-
Step 700
700 (this color)
#AA360F
oklch(50% 0.159 36.8)
-
Step 800
800
#882C0F
oklch(42.8% 0.131 36.7)
-
Step 900
900
#6D2915
oklch(37.7% 0.102 36.9)
-
Step 950
950
#40190E
oklch(27% 0.064 36.6)
#AA360F 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) | #594E06 | 0.161 |
| Deuteranopia (no green cones) | #756805 | 0.147 |
| Tritanopia (no blue cones) | #BC0C2F | 0.064 |
| Achromatopsia (no color) | #5E5E5E | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA360F
#AA360F
oklch(50% 0.159 36.8)
- #006F84
#006F84
oklch(49.9% 0.089 216.9)
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 #AA360F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.013
- Russet #A13905 ΔE 0.019
- Rust Red #AA2704 ΔE 0.022
- Brick #A03623 ΔE 0.024
- Rufous #AE2012 ΔE 0.031
- Burnt Umber #A0450E ΔE 0.032
- Firebrick #B22222 ΔE 0.036
- Brown #A52A2A ΔE 0.037
Use #AA360F 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.