#AD4133
Closest named color: Dull Red (#BB3F3F). oklch(52.2% 0.144 30.1), rgb(173, 65, 51).
Aa
White text reads best on this color (5.86:1).
About this color
#AD4133 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.144 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.031 away. White text reads best on it, at 5.86:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.58:1 |
| White text | 5.86:1 |
Values
| HEX | #AD4133 |
| RGB | rgb(173, 65, 51) |
| HSL | hsl(7, 54%, 44%) |
| OKLCH | oklch(52.2% 0.144 30.1) |
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 #AD4133 | 5.86:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #AD4133 | 3.58:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #AD4133 text on white | 5.86:1 | AA | Lc 78.5 | Fine for body text |
| #AD4133 text on black | 3.58:1 | AA large text | Lc -23.3 | 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
#F7E5E2
oklch(93.5% 0.02 28.9)
-
Step 200
200
#F2D0CA
oklch(88.5% 0.039 29.7)
-
Step 300
300
#EAB0A6
oklch(80.8% 0.07 29.8)
-
Step 400
400
#DD8576
oklch(70.6% 0.111 30.4)
-
Step 500
500
#D26353
oklch(63.1% 0.144 30)
-
Step 600
600
#BD4738
oklch(55.6% 0.155 30)
-
Step 700
700 (this color)
#AD4133
oklch(52.2% 0.144 30.1)
-
Step 800
800
#842F24
oklch(42.7% 0.119 30.1)
-
Step 900
900
#6A2B22
oklch(37.7% 0.092 30.2)
-
Step 950
950
#3F1A14
oklch(27.1% 0.059 30.8)
#AD4133 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) | #5E5631 | 0.151 |
| Deuteranopia (no green cones) | #796D30 | 0.138 |
| Tritanopia (no blue cones) | #BE283E | 0.051 |
| Achromatopsia (no color) | #656565 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD4133
#AD4133
oklch(52.2% 0.144 30.1)
- #007786
#007786
oklch(52.2% 0.09 210)
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 #AD4133, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.031
- Rusty Red #AF2F0D ΔE 0.035
- Brick #A03623 ΔE 0.038
- Sinopia #BB3E03 ΔE 0.039
- Dusty Red #B9484E ΔE 0.042
- Burnt Umber #A0450E ΔE 0.043
- Russet #A13905 ΔE 0.044
- Sienna #A0522D ΔE 0.044
Use #AD4133 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.