#AF1537
Closest named color: Rouge (#AB1239). oklch(48.6% 0.184 17.3), rgb(175, 21, 55).
Aa
White text reads best on this color (7.03:1).
About this color
#AF1537 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.184 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.010 away. White text reads best on it, at 7.03:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.184) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #AF1537 |
| RGB | rgb(175, 21, 55) |
| HSL | hsl(347, 79%, 38%) |
| OKLCH | oklch(48.6% 0.184 17.3) |
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 #AF1537 | 7.03:1 | AAA | Lc -87.5 | Fine for body text |
| Black text on #AF1537 | 2.98:1 | Fails | Lc 21.6 | Dividers and decoration only |
| #AF1537 text on white | 7.03:1 | AAA | Lc 82.4 | Fine for body text |
| #AF1537 text on black | 2.98:1 | Fails | Lc -19.5 | 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 700.
-
Step 50
50
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE3E4
oklch(93.6% 0.026 14.7)
-
Step 200
200
#F8CDCD
oklch(88.5% 0.049 18.1)
-
Step 300
300
#F5AAAC
oklch(81% 0.089 17.4)
-
Step 400
400
#EB7880
oklch(70.6% 0.142 17)
-
Step 500
500
#E24F60
oklch(63.2% 0.182 17.4)
-
Step 600
600
#CD2947
oklch(55.6% 0.197 17.3)
-
Step 700
700 (this color)
#AF1537
oklch(48.6% 0.184 17.3)
-
Step 800
800
#8F192F
oklch(42.6% 0.152 17.1)
-
Step 900
900
#731E2A
oklch(37.7% 0.118 17)
-
Step 950
950
#441319
oklch(27% 0.075 16.6)
#AF1537 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) | #484537 | 0.205 |
| Deuteranopia (no green cones) | #6E6432 | 0.187 |
| Tritanopia (no blue cones) | #C10025 | 0.040 |
| Achromatopsia (no color) | #595959 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AF1537
#AF1537
oklch(48.6% 0.184 17.3)
- #006D70
#006D70
oklch(48.5% 0.083 198.1)
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 #AF1537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.010
- Rose Red #BE013C ΔE 0.031
- Raspberry #B00149 ΔE 0.031
- Firebrick #B22222 ΔE 0.032
- Lipstick Red #C0022F ΔE 0.035
- Brown #A52A2A ΔE 0.035
- Scarlet #BE0119 ΔE 0.041
- Rufous #AE2012 ΔE 0.041
Use #AF1537 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.