#A1403B
Closest named color: Brick (#A03623). oklch(50.2% 0.13 25.8), rgb(161, 64, 59).
Aa
White text reads best on this color (6.34:1).
About this color
#A1403B is a medium-dark, moderately saturated red. In OKLCH its lightness is 50%, its chroma 0.130 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.028 away. White text reads best on it, at 6.34:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 3.31:1 |
| White text | 6.34:1 |
Values
| HEX | #A1403B |
| RGB | rgb(161, 64, 59) |
| HSL | hsl(3, 46%, 43%) |
| OKLCH | oklch(50.2% 0.13 25.8) |
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 #A1403B | 6.34:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #A1403B | 3.31:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #A1403B text on white | 6.34:1 | AA | Lc 80.9 | Fine for body text |
| #A1403B text on black | 3.31:1 | AA large text | Lc -21.0 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E4
oklch(93.7% 0.018 26.1)
-
Step 200
200
#F0D1CD
oklch(88.6% 0.035 26.6)
-
Step 300
300
#E7B2AC
oklch(81% 0.063 25.9)
-
Step 400
400
#D88780
oklch(70.6% 0.101 25.3)
-
Step 500
500
#CC6760
oklch(63.1% 0.129 25.5)
-
Step 600
600
#B74C46
oklch(55.6% 0.14 25.9)
-
Step 700
700 (this color)
#A1403B
oklch(50.2% 0.13 25.8)
-
Step 800
800
#80332F
oklch(42.8% 0.108 25.6)
-
Step 900
900
#672D29
oklch(37.6% 0.084 25.9)
-
Step 950
950
#3D1B19
oklch(27.1% 0.054 24.7)
#A1403B 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) | #59533A | 0.137 |
| Deuteranopia (no green cones) | #716739 | 0.126 |
| Tritanopia (no blue cones) | #B02D3F | 0.042 |
| Achromatopsia (no color) | #5F5F5F | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1403B
#A1403B
oklch(50.2% 0.13 25.8)
- #00717C
#00717C
oklch(50.1% 0.086 206.6)
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 #A1403B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.028
- Brown #A52A2A ΔE 0.037
- Light Maroon #A24857 ΔE 0.037
- Russet #A13905 ΔE 0.043
- Rusty Red #AF2F0D ΔE 0.045
- Burnt Umber #A0450E ΔE 0.046
- Light Burgundy #A8415B ΔE 0.047
- Sienna #A0522D ΔE 0.049
Use #A1403B 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.