#AF4B39
Closest named color: Dull Red (#BB3F3F). oklch(54% 0.135 32.1), rgb(175, 75, 57).
Aa
White text reads best on this color (5.40:1).
About this color
#AF4B39 is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.135 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.033 away. White text reads best on it, at 5.40:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #AF4B39 |
| RGB | rgb(175, 75, 57) |
| HSL | hsl(9, 51%, 45%) |
| OKLCH | oklch(54% 0.135 32.1) |
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 #AF4B39 | 5.40:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #AF4B39 | 3.88:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #AF4B39 text on white | 5.40:1 | AA | Lc 76.3 | Fine for body text |
| #AF4B39 text on black | 3.88:1 | AA large text | Lc -25.5 | 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 600.
-
Step 50
50
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EFD2CB
oklch(88.6% 0.034 33.8)
-
Step 300
300
#E5B3A8
oklch(80.9% 0.061 32.6)
-
Step 400
400
#D68A7A
oklch(70.7% 0.097 32.5)
-
Step 500
500
#C96A58
oklch(63% 0.124 32)
-
Step 600
600 (this color)
#AF4B39
oklch(54% 0.135 32.1)
-
Step 700
700
#9B4030
oklch(49.1% 0.125 31.9)
-
Step 800
800
#7E3528
oklch(42.6% 0.105 31.9)
-
Step 900
900
#662F25
oklch(37.7% 0.082 31.8)
-
Step 950
950
#3C1C16
oklch(27% 0.052 31.8)
#AF4B39 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) | #655D37 | 0.138 |
| Deuteranopia (no green cones) | #7E7237 | 0.126 |
| Tritanopia (no blue cones) | #C03747 | 0.052 |
| Achromatopsia (no color) | #6A6A6A | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AF4B39
#AF4B39
oklch(54% 0.135 32.1)
- #007D8E
#007D8E
oklch(54.1% 0.094 211.3)
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 #AF4B39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.033
- Dusty Red #B9484E ΔE 0.035
- Sienna #A0522D ΔE 0.036
- Sinopia #BB3E03 ΔE 0.040
- Cinnamon #AC4F06 ΔE 0.042
- Brick Orange #C14A09 ΔE 0.047
- Burnt Siena #B75203 ΔE 0.047
- Burnt Umber #A0450E ΔE 0.049
Use #AF4B39 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.