#B4452D
Closest named color: Sinopia (#BB3E03). oklch(53.8% 0.15 33.8), rgb(180, 69, 45).
Aa
White text reads best on this color (5.48:1).
About this color
#B4452D is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.150 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.025 away. White text reads best on it, at 5.48:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #B4452D |
| RGB | rgb(180, 69, 45) |
| HSL | hsl(11, 60%, 44%) |
| OKLCH | oklch(53.8% 0.15 33.8) |
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 #B4452D | 5.48:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #B4452D | 3.82:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #B4452D text on white | 5.48:1 | AA | Lc 76.6 | Fine for body text |
| #B4452D text on black | 3.82:1 | AA large text | Lc -25.2 | 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 600.
-
Step 50
50
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F7E6E1
oklch(93.7% 0.02 37)
-
Step 200
200
#F1D1C9
oklch(88.5% 0.038 34.3)
-
Step 300
300
#E9B2A4
oklch(81% 0.068 34.7)
-
Step 400
400
#DB8774
oklch(70.7% 0.108 33.5)
-
Step 500
500
#CF664F
oklch(63.1% 0.138 33.7)
-
Step 600
600 (this color)
#B4452D
oklch(53.8% 0.15 33.8)
-
Step 700
700
#A03B25
oklch(49.1% 0.139 33.9)
-
Step 800
800
#823220
oklch(42.7% 0.115 34.2)
-
Step 900
900
#692D1F
oklch(37.8% 0.09 34.4)
-
Step 950
950
#3E1B13
oklch(27.1% 0.057 34.1)
#B4452D 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) | #645A2A | 0.152 |
| Deuteranopia (no green cones) | #7F7229 | 0.140 |
| Tritanopia (no blue cones) | #C62A40 | 0.059 |
| Achromatopsia (no color) | #696969 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4452D
#B4452D
oklch(53.8% 0.15 33.8)
- #007C8F
#007C8F
oklch(53.9% 0.094 213.2)
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 #B4452D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.025
- Dull Red #BB3F3F ΔE 0.029
- Brick Orange #C14A09 ΔE 0.038
- Dusty Red #B9484E ΔE 0.040
- Cinnamon #AC4F06 ΔE 0.040
- Rusty Red #AF2F0D ΔE 0.042
- Burnt Siena #B75203 ΔE 0.043
- Burnt Orange #C04E01 ΔE 0.043
Use #B4452D 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.