#AD4140
Closest named color: Dull Red (#BB3F3F). oklch(52.4% 0.142 23.9), rgb(173, 65, 64).
Aa
White text reads best on this color (5.82:1).
About this color
#AD4140 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.142 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.027 away. White text reads best on it, at 5.82:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #AD4140 |
| RGB | rgb(173, 65, 64) |
| HSL | hsl(1, 46%, 46%) |
| OKLCH | oklch(52.4% 0.142 23.9) |
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 #AD4140 | 5.82:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #AD4140 | 3.60:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #AD4140 text on white | 5.82:1 | AA | Lc 78.3 | Fine for body text |
| #AD4140 text on black | 3.60:1 | AA large text | Lc -23.4 | 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 600.
-
Step 50
50
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F0D1CE
oklch(88.6% 0.035 24.4)
-
Step 300
300
#E7B1AD
oklch(80.9% 0.064 23.4)
-
Step 400
400
#D98781
oklch(70.7% 0.102 24.5)
-
Step 500
500
#CD6662
oklch(63.1% 0.131 23.8)
-
Step 600
600 (this color)
#AD4140
oklch(52.4% 0.142 23.9)
-
Step 700
700
#9E3B3A
oklch(49.1% 0.133 23.9)
-
Step 800
800
#803230
oklch(42.7% 0.109 24.3)
-
Step 900
900
#682D2B
oklch(37.8% 0.085 23.9)
-
Step 950
950
#3D1B19
oklch(27.1% 0.054 24.7)
#AD4140 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) | #5D573F | 0.152 |
| Deuteranopia (no green cones) | #786E3D | 0.141 |
| Tritanopia (no blue cones) | #BD2B42 | 0.043 |
| Achromatopsia (no color) | #656565 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD4140
#AD4140
oklch(52.4% 0.142 23.9)
- #007982
#007982
oklch(52.5% 0.09 203.9)
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 #AD4140, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.027
- Dusty Red #B9484E ΔE 0.033
- Light Maroon #A24857 ΔE 0.035
- Light Burgundy #A8415B ΔE 0.040
- Dark Rose #B5485D ΔE 0.042
- Brick #A03623 ΔE 0.045
- Rusty Red #AF2F0D ΔE 0.046
- Brown #A52A2A ΔE 0.047
Use #AD4140 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.