#AE3D31
Closest named color: Rusty Red (#AF2F0D). oklch(51.8% 0.15 29.2), rgb(174, 61, 49).
Aa
White text reads best on this color (5.98:1).
About this color
#AE3D31 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.150 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.030 away. White text reads best on it, at 5.98:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.51:1 |
| White text | 5.98:1 |
Values
| HEX | #AE3D31 |
| RGB | rgb(174, 61, 49) |
| HSL | hsl(6, 56%, 44%) |
| OKLCH | oklch(51.8% 0.15 29.2) |
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 #AE3D31 | 5.98:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #AE3D31 | 3.51:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #AE3D31 text on white | 5.98:1 | AA | Lc 79.0 | Fine for body text |
| #AE3D31 text on black | 3.51:1 | AA large text | Lc -22.8 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F3D0CA
oklch(88.6% 0.04 29.4)
-
Step 300
300
#ECB0A6
oklch(81% 0.072 29.4)
-
Step 400
400
#E08376
oklch(70.7% 0.117 28.8)
-
Step 500
500
#D46152
oklch(63.1% 0.148 29.4)
-
Step 600
600
#BF4437
oklch(55.6% 0.16 29.2)
-
Step 700
700 (this color)
#AE3D31
oklch(51.8% 0.15 29.2)
-
Step 800
800
#862D23
oklch(42.8% 0.124 29.5)
-
Step 900
900
#6C2921
oklch(37.7% 0.098 29.3)
-
Step 950
950
#3F1914
oklch(26.9% 0.061 29.3)
#AE3D31 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) | #5C542F | 0.158 |
| Deuteranopia (no green cones) | #786C2D | 0.144 |
| Tritanopia (no blue cones) | #BF203B | 0.051 |
| Achromatopsia (no color) | #636363 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AE3D31
#AE3D31
oklch(51.8% 0.15 29.2)
- #007684
#007684
oklch(51.8% 0.089 209.2)
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 #AE3D31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.030
- Dull Red #BB3F3F ΔE 0.031
- Brick #A03623 ΔE 0.035
- Firebrick #B22222 ΔE 0.037
- Sinopia #BB3E03 ΔE 0.040
- Brown #A52A2A ΔE 0.040
- Rust Red #AA2704 ΔE 0.043
- Russet #A13905 ΔE 0.043
Use #AE3D31 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.