#A6321B
Closest named color: Brick (#A03623). oklch(48.9% 0.156 33.1), rgb(166, 50, 27).
Aa
White text reads best on this color (6.78:1).
About this color
#A6321B is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.156 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.013 away. White text reads best on it, at 6.78:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #A6321B |
| RGB | rgb(166, 50, 27) |
| HSL | hsl(10, 72%, 38%) |
| OKLCH | oklch(48.9% 0.156 33.1) |
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 #A6321B | 6.78:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #A6321B | 3.09:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #A6321B text on white | 6.78:1 | AA | Lc 82.3 | Fine for body text |
| #A6321B text on black | 3.09:1 | AA large text | Lc -19.6 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F4D0C8
oklch(88.6% 0.042 32.6)
-
Step 300
300
#EDAFA1
oklch(80.8% 0.076 33.1)
-
Step 400
400
#E1836F
oklch(70.7% 0.12 32.9)
-
Step 500
500
#D66048
oklch(63.1% 0.154 33.1)
-
Step 600
600
#C24229
oklch(55.7% 0.168 33)
-
Step 700
700 (this color)
#A6321B
oklch(48.9% 0.156 33.1)
-
Step 800
800
#872B19
oklch(42.6% 0.129 33.1)
-
Step 900
900
#6D291B
oklch(37.7% 0.1 33.4)
-
Step 950
950
#401911
oklch(27% 0.063 33.1)
#A6321B 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) | #544B17 | 0.163 |
| Deuteranopia (no green cones) | #716415 | 0.147 |
| Tritanopia (no blue cones) | #B7052E | 0.057 |
| Achromatopsia (no color) | #5B5B5B | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A6321B
#A6321B
oklch(48.9% 0.156 33.1)
- #006C7D
#006C7D
oklch(48.8% 0.086 213.4)
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 #A6321B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.013
- Rust Red #AA2704 ΔE 0.017
- Rusty Red #AF2F0D ΔE 0.019
- Russet #A13905 ΔE 0.022
- Brown #A52A2A ΔE 0.023
- Rufous #AE2012 ΔE 0.025
- Burnt Red #9F2305 ΔE 0.030
- Firebrick #B22222 ΔE 0.031
Use #A6321B 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.