#AA4121
Closest named color: Burnt Umber (#A0450E). oklch(51.5% 0.145 37.1), rgb(170, 65, 33).
Aa
White text reads best on this color (6.02:1).
About this color
#AA4121 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.145 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Umber (#A0450E), ΔE 0.026 away. White text reads best on it, at 6.02:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.145) |
| Temperature | warm |
| Nearest name | Burnt Umber (#A0450E) |
| Black text | 3.48:1 |
| White text | 6.02:1 |
Values
| HEX | #AA4121 |
| RGB | rgb(170, 65, 33) |
| HSL | hsl(14, 67%, 40%) |
| OKLCH | oklch(51.5% 0.145 37.1) |
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 #AA4121 | 6.02:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #AA4121 | 3.48:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #AA4121 text on white | 6.02:1 | AA | Lc 79.3 | Fine for body text |
| #AA4121 text on black | 3.48:1 | AA large text | Lc -22.5 | 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
#F7E6E0
oklch(93.7% 0.02 40.5)
-
Step 200
200
#F1D1C7
oklch(88.5% 0.039 38.1)
-
Step 300
300
#EAB1A1
oklch(80.9% 0.071 36.3)
-
Step 400
400
#DD876D
oklch(70.8% 0.113 37.6)
-
Step 500
500
#D16546
oklch(63.1% 0.144 36.9)
-
Step 600
600
#BC4926
oklch(55.5% 0.156 37.1)
-
Step 700
700 (this color)
#AA4121
oklch(51.5% 0.145 37.1)
-
Step 800
800
#843117
oklch(42.8% 0.121 37.4)
-
Step 900
900
#6A2C1A
oklch(37.7% 0.094 36.9)
-
Step 950
950
#3E1B10
oklch(27% 0.058 38.1)
#AA4121 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) | #5F541C | 0.145 |
| Deuteranopia (no green cones) | #796C1D | 0.133 |
| Tritanopia (no blue cones) | #BB273B | 0.062 |
| Achromatopsia (no color) | #636363 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA4121
#AA4121
oklch(51.5% 0.145 37.1)
- #00748A
#00748A
oklch(51.5% 0.092 217.1)
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 #AA4121, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Umber #A0450E ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.029
- Russet #A13905 ΔE 0.029
- Brick #A03623 ΔE 0.033
- Sinopia #BB3E03 ΔE 0.034
- Sienna #A0522D ΔE 0.037
- Cinnamon #AC4F06 ΔE 0.038
- Rust Red #AA2704 ΔE 0.042
Use #AA4121 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.