#A43815
Closest named color: Russet (#A13905). oklch(49.2% 0.15 37.1), rgb(164, 56, 21).
Aa
White text reads best on this color (6.65:1).
About this color
#A43815 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.150 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.011 away. White text reads best on it, at 6.65:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.15:1 |
| White text | 6.65:1 |
Values
| HEX | #A43815 |
| RGB | rgb(164, 56, 21) |
| HSL | hsl(15, 77%, 36%) |
| OKLCH | oklch(49.2% 0.15 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 #A43815 | 6.65:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #A43815 | 3.15:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #A43815 text on white | 6.65:1 | AA | Lc 81.9 | Fine for body text |
| #A43815 text on black | 3.15:1 | AA large text | Lc -20.0 | 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
#F7E5E0
oklch(93.5% 0.021 36)
-
Step 200
200
#F2D1C7
oklch(88.6% 0.04 37.5)
-
Step 300
300
#EBB1A0
oklch(80.9% 0.072 37)
-
Step 400
400
#DE866C
oklch(70.7% 0.115 37.3)
-
Step 500
500
#D36443
oklch(63.2% 0.148 37.3)
-
Step 600
600
#BE4722
oklch(55.5% 0.161 37.1)
-
Step 700
700 (this color)
#A43815
oklch(49.2% 0.15 37.1)
-
Step 800
800
#852F15
oklch(42.7% 0.124 36.8)
-
Step 900
900
#6B2B18
oklch(37.7% 0.097 37.1)
-
Step 950
950
#3F1A0F
oklch(27% 0.061 37.3)
#A43815 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) | #584D0E | 0.151 |
| Deuteranopia (no green cones) | #72650E | 0.137 |
| Tritanopia (no blue cones) | #B51732 | 0.063 |
| Achromatopsia (no color) | #5C5C5C | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A43815
#A43815
oklch(49.2% 0.15 37.1)
- #006D81
#006D81
oklch(49.3% 0.088 216.3)
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 #A43815, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.011
- Brick #A03623 ΔE 0.015
- Rusty Red #AF2F0D ΔE 0.023
- Rust Red #AA2704 ΔE 0.025
- Burnt Umber #A0450E ΔE 0.028
- Brown #A52A2A ΔE 0.035
- Rufous #AE2012 ΔE 0.036
- Burnt Red #9F2305 ΔE 0.037
Use #A43815 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.