#A34B37
Closest named color: Sienna (#A0522D). oklch(52.1% 0.121 34.1), rgb(163, 75, 55).
Aa
White text reads best on this color (5.80:1).
About this color
#A34B37 is a medium-dark, moderately saturated red. In OKLCH its lightness is 52%, its chroma 0.121 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.023 away. White text reads best on it, at 5.80:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.121) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.61:1 |
| White text | 5.80:1 |
Values
| HEX | #A34B37 |
| RGB | rgb(163, 75, 55) |
| HSL | hsl(11, 50%, 43%) |
| OKLCH | oklch(52.1% 0.121 34.1) |
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 #A34B37 | 5.80:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #A34B37 | 3.61:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #A34B37 text on white | 5.80:1 | AA | Lc 78.5 | Fine for body text |
| #A34B37 text on black | 3.61:1 | AA large text | Lc -23.3 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EED2CB
oklch(88.5% 0.033 34.3)
-
Step 300
300
#E4B4A8
oklch(81% 0.059 34.4)
-
Step 400
400
#D48B79
oklch(70.7% 0.094 34.5)
-
Step 500
500
#C76C57
oklch(63% 0.12 34)
-
Step 600
600
#B2523C
oklch(55.5% 0.13 34.2)
-
Step 700
700 (this color)
#A34B37
oklch(52.1% 0.121 34.1)
-
Step 800
800
#7C3727
oklch(42.6% 0.1 34.4)
-
Step 900
900
#643024
oklch(37.6% 0.078 34.2)
-
Step 950
950
#3B1D16
oklch(27% 0.049 34.1)
#A34B37 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) | #625935 | 0.121 |
| Deuteranopia (no green cones) | #786D35 | 0.113 |
| Tritanopia (no blue cones) | #B23A46 | 0.050 |
| Achromatopsia (no color) | #656565 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A34B37
#A34B37
oklch(52.1% 0.121 34.1)
- #007689
#007689
oklch(52% 0.091 214)
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 #A34B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.023
- Burnt Umber #A0450E ΔE 0.034
- Cinnamon #AC4F06 ΔE 0.043
- Brick #A03623 ΔE 0.044
- Russet #A13905 ΔE 0.045
- Light Maroon #A24857 ΔE 0.047
- Warm Brown #964E02 ΔE 0.051
- Dull Red #BB3F3F ΔE 0.051
Use #A34B37 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.