#AA3E3C
Closest named color: Dull Red (#BB3F3F). oklch(51.5% 0.143 24.6), rgb(170, 62, 60).
Aa
White text reads best on this color (6.06:1).
About this color
#AA3E3C is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.143 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.034 away. White text reads best on it, at 6.06:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #AA3E3C |
| RGB | rgb(170, 62, 60) |
| HSL | hsl(1, 48%, 45%) |
| OKLCH | oklch(51.5% 0.143 24.6) |
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 #AA3E3C | 6.06:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #AA3E3C | 3.46:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #AA3E3C text on white | 6.06:1 | AA | Lc 79.5 | Fine for body text |
| #AA3E3C text on black | 3.46:1 | AA large text | Lc -22.3 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F7E5E3
oklch(93.6% 0.02 25.2)
-
Step 200
200
#F2D0CD
oklch(88.5% 0.039 23.9)
-
Step 300
300
#EAB0AB
oklch(80.9% 0.069 24.3)
-
Step 400
400
#DD847E
oklch(70.6% 0.111 24.4)
-
Step 500
500
#D1625D
oklch(63% 0.142 24.6)
-
Step 600
600
#BC4644
oklch(55.5% 0.153 24.4)
-
Step 700
700 (this color)
#AA3E3C
oklch(51.5% 0.143 24.6)
-
Step 800
800
#842E2D
oklch(42.7% 0.119 24.2)
-
Step 900
900
#6A2A28
oklch(37.6% 0.092 24.3)
-
Step 950
950
#3E1A18
oklch(27% 0.057 24.8)
#AA3E3C 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) | #5A543B | 0.152 |
| Deuteranopia (no green cones) | #756B39 | 0.141 |
| Tritanopia (no blue cones) | #BA273F | 0.043 |
| Achromatopsia (no color) | #626262 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA3E3C
#AA3E3C
oklch(51.5% 0.143 24.6)
- #00767F
#00767F
oklch(51.6% 0.088 204.1)
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 #AA3E3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.034
- Brick #A03623 ΔE 0.036
- Light Maroon #A24857 ΔE 0.038
- Brown #A52A2A ΔE 0.038
- Rusty Red #AF2F0D ΔE 0.040
- Firebrick #B22222 ΔE 0.042
- Dusty Red #B9484E ΔE 0.042
- Light Burgundy #A8415B ΔE 0.042
Use #AA3E3C 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.