#B33548
Closest named color: Dull Red (#BB3F3F). oklch(52.2% 0.161 16.3), rgb(179, 53, 72).
Aa
White text reads best on this color (5.96:1).
About this color
#B33548 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.161 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.032 away. White text reads best on it, at 5.96:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.51:1 |
| White text | 5.96:1 |
Values
| HEX | #B33548 |
| RGB | rgb(179, 53, 72) |
| HSL | hsl(351, 54%, 45%) |
| OKLCH | oklch(52.2% 0.161 16.3) |
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 #B33548 | 5.96:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #B33548 | 3.51:1 | AA large text | Lc 25.3 | Dividers and decoration only |
| #B33548 text on white | 5.96:1 | AA | Lc 78.8 | Fine for body text |
| #B33548 text on black | 3.51:1 | AA large text | Lc -23.0 | 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 700.
-
Step 50
50
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F9E4E5
oklch(93.6% 0.023 14.3)
-
Step 200
200
#F5CECF
oklch(88.5% 0.044 16.3)
-
Step 300
300
#EFADAF
oklch(81% 0.078 16.9)
-
Step 400
400
#E37E85
oklch(70.6% 0.125 16.4)
-
Step 500
500
#D85967
oklch(63% 0.16 16.3)
-
Step 600
600
#C43A4F
oklch(55.7% 0.174 16.3)
-
Step 700
700 (this color)
#B33548
oklch(52.2% 0.161 16.3)
-
Step 800
800
#892535
oklch(42.7% 0.134 16)
-
Step 900
900
#6E252E
oklch(37.7% 0.104 16.3)
-
Step 950
950
#41171B
oklch(27.1% 0.065 16.8)
#B33548 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) | #565348 | 0.178 |
| Deuteranopia (no green cones) | #766D45 | 0.163 |
| Tritanopia (no blue cones) | #C4153D | 0.041 |
| Achromatopsia (no color) | #636363 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B33548
#B33548
oklch(52.2% 0.161 16.3)
- #00797A
#00797A
oklch(52.2% 0.089 195.8)
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 #B33548, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.032
- Light Burgundy #A8415B ΔE 0.033
- Dusty Red #B9484E ΔE 0.038
- Dark Rose #B5485D ΔE 0.039
- Light Maroon #A24857 ΔE 0.043
- Rose Red #BE013C ΔE 0.044
- Firebrick #B22222 ΔE 0.044
- Lipstick Red #C0022F ΔE 0.046
Use #B33548 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.