#A91D2D
Closest named color: Brown (#A52A2A). oklch(47.8% 0.174 21.7), rgb(169, 29, 45).
Aa
White text reads best on this color (7.23:1).
About this color
#A91D2D is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.174 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.018 away. White text reads best on it, at 7.23:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 2.90:1 |
| White text | 7.23:1 |
Values
| HEX | #A91D2D |
| RGB | rgb(169, 29, 45) |
| HSL | hsl(353, 71%, 39%) |
| OKLCH | oklch(47.8% 0.174 21.7) |
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 #A91D2D | 7.23:1 | AAA | Lc -88.5 | Fine for body text |
| Black text on #A91D2D | 2.90:1 | Fails | Lc 20.6 | Dividers and decoration only |
| #A91D2D text on white | 7.23:1 | AAA | Lc 83.5 | Fine for body text |
| #A91D2D text on black | 2.90:1 | Fails | Lc -18.5 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F7CECB
oklch(88.6% 0.047 23)
-
Step 300
300
#F2ABA8
oklch(80.8% 0.084 21.8)
-
Step 400
400
#E87C7B
oklch(70.7% 0.134 21.6)
-
Step 500
500
#DE5559
oklch(63.1% 0.171 21.7)
-
Step 600
600
#C9333F
oklch(55.6% 0.186 21.7)
-
Step 700
700 (this color)
#A91D2D
oklch(47.8% 0.174 21.7)
-
Step 800
800
#8D2029
oklch(42.7% 0.144 21.7)
-
Step 900
900
#712225
oklch(37.7% 0.111 22.1)
-
Step 950
950
#431516
oklch(27% 0.071 21.9)
#A91D2D 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) | #4A442C | 0.191 |
| Deuteranopia (no green cones) | #6C6128 | 0.174 |
| Tritanopia (no blue cones) | #BA0025 | 0.034 |
| Achromatopsia (no color) | #575757 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A91D2D
#A91D2D
oklch(47.8% 0.174 21.7)
- #006A70
#006A70
oklch(47.7% 0.081 201.6)
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 #A91D2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.018
- Rouge #AB1239 ΔE 0.021
- Firebrick #B22222 ΔE 0.025
- Rufous #AE2012 ΔE 0.028
- Auburn #9B2226 ΔE 0.030
- Rust Red #AA2704 ΔE 0.037
- Burnt Red #9F2305 ΔE 0.040
- Carmine #9D0216 ΔE 0.040
Use #A91D2D 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.