#B3443F
Closest named color: Dull Red (#BB3F3F). oklch(53.7% 0.146 25.8), rgb(179, 68, 63).
Aa
White text reads best on this color (5.50:1).
About this color
#B3443F is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.146 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.016 away. White text reads best on it, at 5.50:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #B3443F |
| RGB | rgb(179, 68, 63) |
| HSL | hsl(3, 48%, 47%) |
| OKLCH | oklch(53.7% 0.146 25.8) |
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 #B3443F | 5.50:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #B3443F | 3.81:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #B3443F text on white | 5.50:1 | AA | Lc 76.7 | Fine for body text |
| #B3443F text on black | 3.81:1 | AA large text | Lc -25.0 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E5E3
oklch(93.5% 0.019 25.6)
-
Step 200
200
#F1D1CD
oklch(88.6% 0.036 26.3)
-
Step 300
300
#E8B1AB
oklch(80.9% 0.065 25.7)
-
Step 400
400
#DA867E
oklch(70.6% 0.105 25.9)
-
Step 500
500
#CE655E
oklch(63% 0.134 25.5)
-
Step 600
600 (this color)
#B3443F
oklch(53.7% 0.146 25.8)
-
Step 700
700
#9F3A36
oklch(49% 0.135 25.6)
-
Step 800
800
#81312D
oklch(42.6% 0.112 25.8)
-
Step 900
900
#682C28
oklch(37.6% 0.087 25.9)
-
Step 950
950
#3D1A18
oklch(26.8% 0.055 24.8)
#B3443F 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) | #615A3E | 0.154 |
| Deuteranopia (no green cones) | #7D723C | 0.143 |
| Tritanopia (no blue cones) | #C42D44 | 0.046 |
| Achromatopsia (no color) | #696969 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3443F
#B3443F
oklch(53.7% 0.146 25.8)
- #007D88
#007D88
oklch(53.8% 0.092 205.6)
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 #B3443F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.016
- Dusty Red #B9484E ΔE 0.023
- Dark Rose #B5485D ΔE 0.039
- Sinopia #BB3E03 ΔE 0.044
- Light Maroon #A24857 ΔE 0.044
- Light Burgundy #A8415B ΔE 0.048
- Rusty Red #AF2F0D ΔE 0.050
- Firebrick #B22222 ΔE 0.053
Use #B3443F 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.