#A33809
Closest named color: Russet (#A13905). oklch(49% 0.15 39.4), rgb(163, 56, 9).
Aa
White text reads best on this color (6.71:1).
About this color
#A33809 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.150 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.005 away. White text reads best on it, at 6.71:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #A33809 |
| RGB | rgb(163, 56, 9) |
| HSL | hsl(18, 90%, 34%) |
| OKLCH | oklch(49% 0.15 39.4) |
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 #A33809 | 6.71:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #A33809 | 3.12:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #A33809 text on white | 6.71:1 | AA | Lc 82.1 | Fine for body text |
| #A33809 text on black | 3.12:1 | AA large text | Lc -19.8 | 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
#F7E6E0
oklch(93.7% 0.02 40.5)
-
Step 200
200
#F2D1C6
oklch(88.5% 0.04 39.3)
-
Step 300
300
#EBB19E
oklch(80.9% 0.073 38.9)
-
Step 400
400
#DE8668
oklch(70.7% 0.117 39.5)
-
Step 500
500
#D2653E
oklch(63.1% 0.148 39.8)
-
Step 600
600
#BE481A
oklch(55.6% 0.162 39.3)
-
Step 700
700 (this color)
#A33809
oklch(49% 0.15 39.4)
-
Step 800
800
#85300E
oklch(42.8% 0.125 39.5)
-
Step 900
900
#6B2C15
oklch(37.8% 0.097 39.7)
-
Step 950
950
#3F1A0E
oklch(27% 0.062 38.5)
#A33809 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) | #584D00 | 0.150 |
| Deuteranopia (no green cones) | #726500 | 0.136 |
| Tritanopia (no blue cones) | #B41730 | 0.066 |
| Achromatopsia (no color) | #5C5C5C | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A33809
#A33809
oklch(49% 0.15 39.4)
- #006C83
#006C83
oklch(49.1% 0.089 219.3)
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 #A33809, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.005
- Brick #A03623 ΔE 0.020
- Burnt Umber #A0450E ΔE 0.025
- Rusty Red #AF2F0D ΔE 0.026
- Rust Red #AA2704 ΔE 0.027
- Burnt Red #9F2305 ΔE 0.037
- Rufous #AE2012 ΔE 0.039
- Brown #A52A2A ΔE 0.040
Use #A33809 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.