#A13B3F
Closest named color: Brown (#A52A2A). oklch(49.7% 0.135 21.2), rgb(161, 59, 63).
Aa
White text reads best on this color (6.53:1).
About this color
#A13B3F is a medium-dark, moderately saturated red. In OKLCH its lightness is 50%, its chroma 0.135 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.031 away. White text reads best on it, at 6.53:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.21:1 |
| White text | 6.53:1 |
Values
| HEX | #A13B3F |
| RGB | rgb(161, 59, 63) |
| HSL | hsl(358, 46%, 43%) |
| OKLCH | oklch(49.7% 0.135 21.2) |
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 #A13B3F | 6.53:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #A13B3F | 3.21:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #A13B3F text on white | 6.53:1 | AA | Lc 81.6 | Fine for body text |
| #A13B3F text on black | 3.21:1 | AA large text | Lc -20.3 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F1D0CF
oklch(88.5% 0.037 19.9)
-
Step 300
300
#E8B0AE
oklch(80.8% 0.066 21)
-
Step 400
400
#DA8584
oklch(70.6% 0.105 20.8)
-
Step 500
500
#CE6465
oklch(63% 0.135 21.1)
-
Step 600
600
#B9494C
oklch(55.6% 0.145 21.5)
-
Step 700
700 (this color)
#A13B3F
oklch(49.7% 0.135 21.2)
-
Step 800
800
#813033
oklch(42.6% 0.112 21)
-
Step 900
900
#682C2D
oklch(37.7% 0.086 21.1)
-
Step 950
950
#3D1A1A
oklch(26.9% 0.055 21.4)
#A13B3F 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) | #55503E | 0.146 |
| Deuteranopia (no green cones) | #6E663C | 0.136 |
| Tritanopia (no blue cones) | #B0273D | 0.038 |
| Achromatopsia (no color) | #5D5D5D | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A13B3F
#A13B3F
oklch(49.7% 0.135 21.2)
- #007076
#007076
oklch(49.6% 0.084 201.3)
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 #A13B3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.031
- Brick #A03623 ΔE 0.031
- Light Maroon #A24857 ΔE 0.036
- Light Burgundy #A8415B ΔE 0.041
- Firebrick #B22222 ΔE 0.047
- Auburn #9B2226 ΔE 0.048
- Rusty Red #AF2F0D ΔE 0.049
- Russet #A13905 ΔE 0.050
Use #A13B3F 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.