#AF4637
Closest named color: Dull Red (#BB3F3F). oklch(53.2% 0.141 30.5), rgb(175, 70, 55).
Aa
White text reads best on this color (5.59:1).
About this color
#AF4637 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.141 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.028 away. White text reads best on it, at 5.59:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.75:1 |
| White text | 5.59:1 |
Values
| HEX | #AF4637 |
| RGB | rgb(175, 70, 55) |
| HSL | hsl(8, 52%, 45%) |
| OKLCH | oklch(53.2% 0.141 30.5) |
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 #AF4637 | 5.59:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #AF4637 | 3.75:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #AF4637 text on white | 5.59:1 | AA | Lc 77.2 | Fine for body text |
| #AF4637 text on black | 3.75:1 | AA large text | Lc -24.5 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E3
oklch(93.7% 0.018 30.3)
-
Step 200
200
#F0D1CB
oklch(88.5% 0.036 30.8)
-
Step 300
300
#E7B2A8
oklch(80.9% 0.064 30.7)
-
Step 400
400
#D8887A
oklch(70.6% 0.101 30.5)
-
Step 500
500
#CC6858
oklch(63.1% 0.13 30.5)
-
Step 600
600 (this color)
#AF4637
oklch(53.2% 0.141 30.5)
-
Step 700
700
#9D3D30
oklch(49% 0.131 30.2)
-
Step 800
800
#803328
oklch(42.7% 0.109 30.4)
-
Step 900
900
#672E25
oklch(37.7% 0.084 30.6)
-
Step 950
950
#3D1B16
oklch(27% 0.055 29.8)
#AF4637 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) | #625935 | 0.145 |
| Deuteranopia (no green cones) | #7C7034 | 0.134 |
| Tritanopia (no blue cones) | #C03043 | 0.051 |
| Achromatopsia (no color) | #686868 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AF4637
#AF4637
oklch(53.2% 0.141 30.5)
- #007A8A
#007A8A
oklch(53.1% 0.092 210.7)
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 #AF4637, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.028
- Dusty Red #B9484E ΔE 0.035
- Sinopia #BB3E03 ΔE 0.038
- Sienna #A0522D ΔE 0.041
- Rusty Red #AF2F0D ΔE 0.044
- Cinnamon #AC4F06 ΔE 0.046
- Burnt Umber #A0450E ΔE 0.047
- Light Maroon #A24857 ΔE 0.048
Use #AF4637 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.