#A63F45
Closest named color: Light Maroon (#A24857). oklch(51.1% 0.136 19.9), rgb(166, 63, 69).
Aa
White text reads best on this color (6.14:1).
About this color
#A63F45 is a medium-dark, moderately saturated red. In OKLCH its lightness is 51%, its chroma 0.136 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Light Maroon (#A24857), ΔE 0.026 away. White text reads best on it, at 6.14:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.136) |
| Temperature | warm |
| Nearest name | Light Maroon (#A24857) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #A63F45 |
| RGB | rgb(166, 63, 69) |
| HSL | hsl(357, 45%, 45%) |
| OKLCH | oklch(51.1% 0.136 19.9) |
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 #A63F45 | 6.14:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #A63F45 | 3.41:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #A63F45 text on white | 6.14:1 | AA | Lc 79.9 | Fine for body text |
| #A63F45 text on black | 3.41:1 | AA large text | Lc -21.9 | 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
#F6E5E5
oklch(93.5% 0.019 17.5)
-
Step 200
200
#F1D0CF
oklch(88.5% 0.037 19.9)
-
Step 300
300
#E8B0AF
oklch(80.8% 0.066 19.8)
-
Step 400
400
#DA8585
oklch(70.6% 0.105 20)
-
Step 500
500
#CE6467
oklch(63.1% 0.135 19.9)
-
Step 600
600
#B9484F
oklch(55.5% 0.146 19.6)
-
Step 700
700 (this color)
#A63F45
oklch(51.1% 0.136 19.9)
-
Step 800
800
#813035
oklch(42.7% 0.112 19.5)
-
Step 900
900
#682B2E
oklch(37.6% 0.088 19.3)
-
Step 950
950
#3D1A1B
oklch(26.9% 0.055 19.7)
#A63F45 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) | #585445 | 0.147 |
| Deuteranopia (no green cones) | #726A42 | 0.137 |
| Tritanopia (no blue cones) | #B52C42 | 0.037 |
| Achromatopsia (no color) | #626262 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A63F45
#A63F45
oklch(51.1% 0.136 19.9)
- #00757A
#00757A
oklch(51.1% 0.087 200)
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 #A63F45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Maroon #A24857 ΔE 0.026
- Light Burgundy #A8415B ΔE 0.031
- Brown #A52A2A ΔE 0.041
- Brick #A03623 ΔE 0.042
- Dull Red #BB3F3F ΔE 0.042
- Dusty Red #B9484E ΔE 0.045
- Dark Rose #B5485D ΔE 0.047
- Firebrick #B22222 ΔE 0.050
Use #A63F45 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.