#AE403C
Closest named color: Dull Red (#BB3F3F). oklch(52.4% 0.145 25.5), rgb(174, 64, 60).
Aa
White text reads best on this color (5.83:1).
About this color
#AE403C is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.145 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.026 away. White text reads best on it, at 5.83:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.145) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.59:1 |
| White text | 5.83:1 |
Values
| HEX | #AE403C |
| RGB | rgb(174, 64, 60) |
| HSL | hsl(2, 49%, 46%) |
| OKLCH | oklch(52.4% 0.145 25.5) |
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 #AE403C | 5.83:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #AE403C | 3.59:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #AE403C text on white | 5.83:1 | AA | Lc 78.4 | Fine for body text |
| #AE403C text on black | 3.59:1 | AA large text | Lc -23.4 | 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
#F6E5E3
oklch(93.5% 0.019 25.6)
-
Step 200
200
#F0D1CD
oklch(88.6% 0.035 26.6)
-
Step 300
300
#E8B1AB
oklch(80.9% 0.065 25.7)
-
Step 400
400
#DA867F
oklch(70.6% 0.105 25.2)
-
Step 500
500
#CE665F
oklch(63.2% 0.133 25.5)
-
Step 600
600 (this color)
#AE403C
oklch(52.4% 0.145 25.5)
-
Step 700
700
#9F3A37
oklch(49% 0.135 25.1)
-
Step 800
800
#81312E
oklch(42.7% 0.112 25.1)
-
Step 900
900
#682C29
oklch(37.6% 0.087 25)
-
Step 950
950
#3D1B18
oklch(27% 0.054 26.5)
#AE403C 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) | #5D563B | 0.154 |
| Deuteranopia (no green cones) | #786E39 | 0.143 |
| Tritanopia (no blue cones) | #BF2840 | 0.046 |
| Achromatopsia (no color) | #656565 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AE403C
#AE403C
oklch(52.4% 0.145 25.5)
- #007883
#007883
oklch(52.3% 0.089 206)
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 #AE403C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.026
- Dusty Red #B9484E ΔE 0.034
- Light Maroon #A24857 ΔE 0.040
- Rusty Red #AF2F0D ΔE 0.042
- Brick #A03623 ΔE 0.043
- Firebrick #B22222 ΔE 0.044
- Light Burgundy #A8415B ΔE 0.045
- Brown #A52A2A ΔE 0.045
Use #AE403C 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.