#BB3429
Closest named color: Dull Red (#BB3F3F). oklch(52.9% 0.174 29), rgb(187, 52, 41).
Aa
White text reads best on this color (5.77:1).
About this color
#BB3429 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.174 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.025 away. White text reads best on it, at 5.77:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #BB3429 |
| RGB | rgb(187, 52, 41) |
| HSL | hsl(5, 64%, 45%) |
| OKLCH | oklch(52.9% 0.174 29) |
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 #BB3429 | 5.77:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #BB3429 | 3.63:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #BB3429 text on white | 5.77:1 | AA | Lc 77.6 | Fine for body text |
| #BB3429 text on black | 3.63:1 | AA large text | Lc -24.1 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC9
oklch(88.5% 0.044 28.5)
-
Step 300
300
#EFAEA4
oklch(80.9% 0.078 28.7)
-
Step 400
400
#E48173
oklch(70.8% 0.125 29.1)
-
Step 500
500
#D95C4E
oklch(63.1% 0.16 28.8)
-
Step 600
600 (this color)
#BB3429
oklch(52.9% 0.174 29)
-
Step 700
700
#A92E24
oklch(49.1% 0.161 29)
-
Step 800
800
#89281F
oklch(42.6% 0.133 29.1)
-
Step 900
900
#6F261F
oklch(37.7% 0.105 28.5)
-
Step 950
950
#411813
oklch(27.1% 0.065 29.1)
#BB3429 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) | #5C5326 | 0.185 |
| Deuteranopia (no green cones) | #7E7023 | 0.168 |
| Tritanopia (no blue cones) | #CE0033 | 0.052 |
| Achromatopsia (no color) | #666666 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3429
#BB3429
oklch(52.9% 0.174 29)
- #007A88
#007A88
oklch(53% 0.091 208.8)
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 #BB3429, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.025
- Sinopia #BB3E03 ΔE 0.032
- Rusty Red #AF2F0D ΔE 0.033
- Firebrick #B22222 ΔE 0.034
- Scarlet #BE0119 ΔE 0.041
- Rufous #AE2012 ΔE 0.043
- Dusty Red #B9484E ΔE 0.045
- Lipstick Red #C0022F ΔE 0.045
Use #BB3429 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.