#AE3F13
Closest named color: Sinopia (#BB3E03). oklch(51.8% 0.154 39.1), rgb(174, 63, 19).
Aa
White text reads best on this color (5.96:1).
About this color
#AE3F13 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.154 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.026 away. White text reads best on it, at 5.96:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.52:1 |
| White text | 5.96:1 |
Values
| HEX | #AE3F13 |
| RGB | rgb(174, 63, 19) |
| HSL | hsl(17, 80%, 38%) |
| OKLCH | oklch(51.8% 0.154 39.1) |
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 #AE3F13 | 5.96:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #AE3F13 | 3.52:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #AE3F13 text on white | 5.96:1 | AA | Lc 78.9 | Fine for body text |
| #AE3F13 text on black | 3.52:1 | AA large text | Lc -22.9 | 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
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F3D1C5
oklch(88.6% 0.042 40.4)
-
Step 300
300
#ECB19D
oklch(81% 0.075 39.5)
-
Step 400
400
#DF8567
oklch(70.6% 0.119 39.2)
-
Step 500
500
#D4633C
oklch(63.1% 0.153 39.2)
-
Step 600
600
#C04616
oklch(55.7% 0.166 39)
-
Step 700
700 (this color)
#AE3F13
oklch(51.8% 0.154 39.1)
-
Step 800
800
#862E0B
oklch(42.7% 0.128 39)
-
Step 900
900
#6C2B13
oklch(37.8% 0.099 39.6)
-
Step 950
950
#3F1A0D
oklch(27% 0.062 39.6)
#AE3F13 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) | #5F5409 | 0.155 |
| Deuteranopia (no green cones) | #7B6D0B | 0.139 |
| Tritanopia (no blue cones) | #C01F37 | 0.068 |
| Achromatopsia (no color) | #636363 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AE3F13
#AE3F13
oklch(51.8% 0.154 39.1)
- #00748D
#00748D
oklch(51.7% 0.094 219.7)
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 #AE3F13, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.026
- Burnt Umber #A0450E ΔE 0.029
- Russet #A13905 ΔE 0.031
- Cinnamon #AC4F06 ΔE 0.035
- Brick #A03623 ΔE 0.039
- Rust Red #AA2704 ΔE 0.041
- Sienna #A0522D ΔE 0.042
Use #AE3F13 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.