#A2451D
Closest named color: Burnt Umber (#A0450E). oklch(50.7% 0.134 41.6), rgb(162, 69, 29).
Aa
White text reads best on this color (6.16:1).
About this color
#A2451D is a medium-dark, moderately saturated brown. In OKLCH its lightness is 51%, its chroma 0.134 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Umber (#A0450E), ΔE 0.010 away. White text reads best on it, at 6.16:1.
| Hue family | Browns |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.134) |
| Temperature | warm |
| Nearest name | Burnt Umber (#A0450E) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #A2451D |
| RGB | rgb(162, 69, 29) |
| HSL | hsl(18, 70%, 37%) |
| OKLCH | oklch(50.7% 0.134 41.6) |
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 #A2451D | 6.16:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #A2451D | 3.40:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #A2451D text on white | 6.16:1 | AA | Lc 80.1 | Fine for body text |
| #A2451D text on black | 3.40:1 | AA large text | Lc -21.7 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#EFD2C7
oklch(88.5% 0.036 41.9)
-
Step 300
300
#E6B3A0
oklch(80.8% 0.065 41.4)
-
Step 400
400
#D78A6D
oklch(70.6% 0.103 41.4)
-
Step 500
500
#CB6B45
oklch(63.1% 0.133 41.7)
-
Step 600
600
#B65025
oklch(55.5% 0.144 41.5)
-
Step 700
700 (this color)
#A2451D
oklch(50.7% 0.134 41.6)
-
Step 800
800
#7F3616
oklch(42.7% 0.11 42.1)
-
Step 900
900
#672F19
oklch(37.7% 0.087 41.2)
-
Step 950
950
#3C1C10
oklch(26.9% 0.054 40.9)
#A2451D 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) | #5F5417 | 0.129 |
| Deuteranopia (no green cones) | #76691A | 0.117 |
| Tritanopia (no blue cones) | #B22F3D | 0.066 |
| Achromatopsia (no color) | #616161 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A2451D
#A2451D
oklch(50.7% 0.134 41.6)
- #00718B
#00718B
oklch(50.8% 0.093 221.1)
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 #A2451D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Umber #A0450E ΔE 0.010
- Russet #A13905 ΔE 0.024
- Sienna #A0522D ΔE 0.028
- Brick #A03623 ΔE 0.034
- Cinnamon #AC4F06 ΔE 0.036
- Warm Brown #964E02 ΔE 0.036
- Rusty Red #AF2F0D ΔE 0.041
- Saddle Brown #8B4513 ΔE 0.047
Use #A2451D 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.