#A33334
Closest named color: Brown (#A52A2A). oklch(48.8% 0.148 24), rgb(163, 51, 52).
Aa
White text reads best on this color (6.81:1).
About this color
#A33334 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.148 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.015 away. White text reads best on it, at 6.81:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.08:1 |
| White text | 6.81:1 |
Values
| HEX | #A33334 |
| RGB | rgb(163, 51, 52) |
| HSL | hsl(359, 52%, 42%) |
| OKLCH | oklch(48.8% 0.148 24) |
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 #A33334 | 6.81:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #A33334 | 3.08:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #A33334 text on white | 6.81:1 | AA | Lc 82.5 | Fine for body text |
| #A33334 text on black | 3.08:1 | AA large text | Lc -19.4 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E3
oklch(93.7% 0.021 24.8)
-
Step 200
200
#F3D0CC
oklch(88.6% 0.04 25.6)
-
Step 300
300
#EBAFAA
oklch(80.8% 0.071 24.2)
-
Step 400
400
#DF837D
oklch(70.7% 0.114 24.3)
-
Step 500
500
#D3605D
oklch(63% 0.146 23.7)
-
Step 600
600
#BF4343
oklch(55.6% 0.16 23.9)
-
Step 700
700 (this color)
#A33334
oklch(48.8% 0.148 24)
-
Step 800
800
#852C2C
oklch(42.6% 0.122 23.9)
-
Step 900
900
#6B2928
oklch(37.6% 0.095 23.6)
-
Step 950
950
#3F1918
oklch(27% 0.06 23.4)
#A33334 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) | #524C33 | 0.158 |
| Deuteranopia (no green cones) | #6E6431 | 0.146 |
| Tritanopia (no blue cones) | #B31435 | 0.043 |
| Achromatopsia (no color) | #5B5B5B | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A33334
#A33334
oklch(48.8% 0.148 24)
- #006D75
#006D75
oklch(48.7% 0.083 203.7)
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 #A33334, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.015
- Brick #A03623 ΔE 0.022
- Firebrick #B22222 ΔE 0.034
- Auburn #9B2226 ΔE 0.035
- Rufous #AE2012 ΔE 0.036
- Rust Red #AA2704 ΔE 0.037
- Rusty Red #AF2F0D ΔE 0.039
- Burnt Red #9F2305 ΔE 0.041
Use #A33334 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.