#BB3328
Closest named color: Dull Red (#BB3F3F). oklch(52.8% 0.175 29), rgb(187, 51, 40).
Aa
White text reads best on this color (5.80:1).
About this color
#BB3328 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.175 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.026 away. White text reads best on it, at 5.80:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.61:1 |
| White text | 5.80:1 |
Values
| HEX | #BB3328 |
| RGB | rgb(187, 51, 40) |
| HSL | hsl(4, 65%, 45%) |
| OKLCH | oklch(52.8% 0.175 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 #BB3328 | 5.80:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #BB3328 | 3.61:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #BB3328 text on white | 5.80:1 | AA | Lc 77.8 | Fine for body text |
| #BB3328 text on black | 3.61:1 | AA large text | Lc -24.0 | 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
#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
#E48072
oklch(70.6% 0.126 29)
-
Step 500
500
#D95C4D
oklch(63.1% 0.16 29.2)
-
Step 600
600 (this color)
#BB3328
oklch(52.8% 0.175 29)
-
Step 700
700
#A92D23
oklch(49% 0.162 29)
-
Step 800
800
#8A281F
oklch(42.8% 0.134 29.1)
-
Step 900
900
#6F261E
oklch(37.7% 0.105 29.2)
-
Step 950
950
#411712
oklch(26.9% 0.067 29.1)
#BB3328 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) | #5C5225 | 0.185 |
| Deuteranopia (no green cones) | #7D7022 | 0.170 |
| Tritanopia (no blue cones) | #CE0032 | 0.051 |
| Achromatopsia (no color) | #656565 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3328
#BB3328
oklch(52.8% 0.175 29)
- #007987
#007987
oklch(52.7% 0.091 208.9)
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 #BB3328, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.026
- Sinopia #BB3E03 ΔE 0.032
- Rusty Red #AF2F0D ΔE 0.032
- Firebrick #B22222 ΔE 0.033
- Scarlet #BE0119 ΔE 0.039
- Rufous #AE2012 ΔE 0.042
- Lipstick Red #C0022F ΔE 0.044
- Dusty Red #B9484E ΔE 0.046
Use #BB3328 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.