#AB4D37
Closest named color: Sienna (#A0522D). oklch(53.6% 0.129 34.5), rgb(171, 77, 55).
Aa
White text reads best on this color (5.45:1).
About this color
#AB4D37 is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.129 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.027 away. White text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.84:1 |
| White text | 5.45:1 |
Values
| HEX | #AB4D37 |
| RGB | rgb(171, 77, 55) |
| HSL | hsl(11, 51%, 44%) |
| OKLCH | oklch(53.6% 0.129 34.5) |
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 #AB4D37 | 5.45:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #AB4D37 | 3.84:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #AB4D37 text on white | 5.45:1 | AA | Lc 76.7 | Fine for body text |
| #AB4D37 text on black | 3.84:1 | AA large text | Lc -25.1 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EDD2CB
oklch(88.4% 0.032 34.9)
-
Step 300
300
#E3B4A8
oklch(80.9% 0.058 34.7)
-
Step 400
400
#D48B7A
oklch(70.7% 0.093 33.7)
-
Step 500
500
#C66D57
oklch(63.1% 0.118 34.9)
-
Step 600
600 (this color)
#AB4D37
oklch(53.6% 0.129 34.5)
-
Step 700
700
#98432F
oklch(49.1% 0.119 34.6)
-
Step 800
800
#7C3828
oklch(42.8% 0.099 34.5)
-
Step 900
900
#643124
oklch(37.7% 0.077 35.3)
-
Step 950
950
#3B1D16
oklch(27% 0.049 34.1)
#AB4D37 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) | #665D35 | 0.129 |
| Deuteranopia (no green cones) | #7D7135 | 0.118 |
| Tritanopia (no blue cones) | #BB3A48 | 0.054 |
| Achromatopsia (no color) | #696969 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AB4D37
#AB4D37
oklch(53.6% 0.129 34.5)
- #007B8F
#007B8F
oklch(53.6% 0.094 214.2)
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 #AB4D37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.027
- Cinnamon #AC4F06 ΔE 0.037
- Dull Red #BB3F3F ΔE 0.041
- Burnt Umber #A0450E ΔE 0.042
- Dusty Red #B9484E ΔE 0.043
- Sinopia #BB3E03 ΔE 0.043
- Burnt Siena #B75203 ΔE 0.045
- Brick Orange #C14A09 ΔE 0.049
Use #AB4D37 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.