#A42506
Closest named color: Burnt Red (#9F2305). oklch(47.1% 0.167 33.5), rgb(164, 37, 6).
Aa
White text reads best on this color (7.37:1).
About this color
#A42506 is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.167 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Red (#9F2305), ΔE 0.012 away. White text reads best on it, at 7.37:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.167) |
| Temperature | warm |
| Nearest name | Burnt Red (#9F2305) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #A42506 |
| RGB | rgb(164, 37, 6) |
| HSL | hsl(12, 93%, 33%) |
| OKLCH | oklch(47.1% 0.167 33.5) |
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 #A42506 | 7.37:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #A42506 | 2.84:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #A42506 text on white | 7.37:1 | AAA | Lc 84.1 | Fine for body text |
| #A42506 text on black | 2.84:1 | Fails | Lc -17.8 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F5CFC6
oklch(88.4% 0.045 33.5)
-
Step 300
300
#F0AE9F
oklch(80.9% 0.081 33.2)
-
Step 400
400
#E5806A
oklch(70.6% 0.129 33.3)
-
Step 500
500
#DB5C41
oklch(63.2% 0.165 33.6)
-
Step 600
600
#C63C1F
oklch(55.6% 0.179 33.4)
-
Step 700
700 (this color)
#A42506
oklch(47.1% 0.167 33.5)
-
Step 800
800
#8B2712
oklch(42.8% 0.139 33.4)
-
Step 900
900
#702617
oklch(37.8% 0.108 33.3)
-
Step 950
950
#42170E
oklch(27% 0.069 33.5)
#A42506 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) | #4E4400 | 0.176 |
| Deuteranopia (no green cones) | #6D6000 | 0.158 |
| Tritanopia (no blue cones) | #B50021 | 0.046 |
| Achromatopsia (no color) | #565656 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A42506
#A42506
oklch(47.1% 0.167 33.5)
- #006777
#006777
oklch(47.2% 0.083 213.1)
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 #A42506, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Red #9F2305 ΔE 0.012
- Rust Red #AA2704 ΔE 0.014
- Rufous #AE2012 ΔE 0.022
- Brown #A52A2A ΔE 0.026
- Brick #A03623 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.030
- Auburn #9B2226 ΔE 0.032
- Russet #A13905 ΔE 0.032
Use #A42506 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.