#AF2721
Closest named color: Firebrick (#B22222). oklch(49.5% 0.173 28.1), rgb(175, 39, 33).
Aa
White text reads best on this color (6.69:1).
About this color
#AF2721 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.173 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.008 away. White text reads best on it, at 6.69:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #AF2721 |
| RGB | rgb(175, 39, 33) |
| HSL | hsl(3, 68%, 41%) |
| OKLCH | oklch(49.5% 0.173 28.1) |
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 #AF2721 | 6.69:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #AF2721 | 3.13:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #AF2721 text on white | 6.69:1 | AA | Lc 81.6 | Fine for body text |
| #AF2721 text on black | 3.13:1 | AA large text | Lc -20.3 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F7CEC8
oklch(88.5% 0.047 27.8)
-
Step 300
300
#F2ACA2
oklch(80.8% 0.084 28.1)
-
Step 400
400
#E87D70
oklch(70.6% 0.134 28.2)
-
Step 500
500
#DE574B
oklch(63.1% 0.171 28)
-
Step 600
600
#C9352D
oklch(55.5% 0.186 28)
-
Step 700
700 (this color)
#AF2721
oklch(49.5% 0.173 28.1)
-
Step 800
800
#8D221C
oklch(42.7% 0.144 28.1)
-
Step 900
900
#71231D
oklch(37.7% 0.111 28)
-
Step 950
950
#431612
oklch(27.1% 0.071 27.8)
#AF2721 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) | #52491F | 0.186 |
| Deuteranopia (no green cones) | #73671A | 0.171 |
| Tritanopia (no blue cones) | #C10027 | 0.041 |
| Achromatopsia (no color) | #5C5C5C | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AF2721
#AF2721
oklch(49.5% 0.173 28.1)
- #006F7B
#006F7B
oklch(49.5% 0.085 207.8)
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 #AF2721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.008
- Rufous #AE2012 ΔE 0.012
- Rusty Red #AF2F0D ΔE 0.020
- Rust Red #AA2704 ΔE 0.021
- Brown #A52A2A ΔE 0.021
- Brick #A03623 ΔE 0.033
- Scarlet #BE0119 ΔE 0.034
- Burnt Red #9F2305 ΔE 0.040
Use #AF2721 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.