#AE401A
Closest named color: Sinopia (#BB3E03). oklch(52% 0.152 38), rgb(174, 64, 26).
Aa
White text reads best on this color (5.91:1).
About this color
#AE401A is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.152 and its hue 38°. 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 5.91:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.54:1 |
| White text | 5.91:1 |
Values
| HEX | #AE401A |
| RGB | rgb(174, 64, 26) |
| HSL | hsl(15, 74%, 39%) |
| OKLCH | oklch(52% 0.152 38) |
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 #AE401A | 5.91:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #AE401A | 3.54:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #AE401A text on white | 5.91:1 | AA | Lc 78.7 | Fine for body text |
| #AE401A text on black | 3.54:1 | AA large text | Lc -23.1 | 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
#F7E5E0
oklch(93.5% 0.021 36)
-
Step 200
200
#F2D1C6
oklch(88.5% 0.04 39.3)
-
Step 300
300
#EBB19E
oklch(80.9% 0.073 38.9)
-
Step 400
400
#DF8569
oklch(70.6% 0.118 38)
-
Step 500
500
#D36340
oklch(63% 0.15 37.9)
-
Step 600
600
#BF471D
oklch(55.7% 0.163 38.2)
-
Step 700
700 (this color)
#AE401A
oklch(52% 0.152 38)
-
Step 800
800
#852F10
oklch(42.7% 0.125 38.4)
-
Step 900
900
#6B2B16
oklch(37.6% 0.097 38.3)
-
Step 950
950
#3F1A0E
oklch(27% 0.062 38.5)
#AE401A 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) | #605514 | 0.152 |
| Deuteranopia (no green cones) | #7B6D14 | 0.138 |
| Tritanopia (no blue cones) | #C02239 | 0.066 |
| Achromatopsia (no color) | #646464 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AE401A
#AE401A
oklch(52% 0.152 38)
- #00758C
#00758C
oklch(51.9% 0.093 217.8)
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 #AE401A, 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 0.027
- Burnt Umber #A0450E ΔE 0.030
- Russet #A13905 ΔE 0.033
- Cinnamon #AC4F06 ΔE 0.035
- Brick #A03623 ΔE 0.039
- Sienna #A0522D ΔE 0.041
- Rust Red #AA2704 ΔE 0.042
Use #AE401A 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.