#B73449
Closest named color: Dull Red (#BB3F3F). oklch(52.8% 0.167 16), rgb(183, 52, 73).
Aa
White text reads best on this color (5.83:1).
About this color
#B73449 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.167 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.029 away. White text reads best on it, at 5.83:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.167) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.60:1 |
| White text | 5.83:1 |
Values
| HEX | #B73449 |
| RGB | rgb(183, 52, 73) |
| HSL | hsl(350, 56%, 46%) |
| OKLCH | oklch(52.8% 0.167 16) |
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 #B73449 | 5.83:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #B73449 | 3.60:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #B73449 text on white | 5.83:1 | AA | Lc 78.0 | Fine for body text |
| #B73449 text on black | 3.60:1 | AA large text | Lc -23.7 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E4E5
oklch(93.5% 0.022 14.1)
-
Step 200
200
#F4CFD0
oklch(88.6% 0.042 16.1)
-
Step 300
300
#EDADB0
oklch(80.8% 0.075 15.8)
-
Step 400
400
#E18087
oklch(70.7% 0.12 16)
-
Step 500
500
#D65C69
oklch(63.1% 0.154 16.1)
-
Step 600
600 (this color)
#B73449
oklch(52.8% 0.167 16)
-
Step 700
700
#A62E42
oklch(49.1% 0.155 15.7)
-
Step 800
800
#872836
oklch(42.7% 0.129 16.1)
-
Step 900
900
#6D262F
oklch(37.7% 0.101 15.8)
-
Step 950
950
#40171C
oklch(26.9% 0.064 15)
#B73449 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) | #575449 | 0.183 |
| Deuteranopia (no green cones) | #786F46 | 0.169 |
| Tritanopia (no blue cones) | #C80F3D | 0.041 |
| Achromatopsia (no color) | #656565 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B73449
#B73449
oklch(52.8% 0.167 16)
- #007B7C
#007B7C
oklch(52.8% 0.09 195.8)
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 #B73449, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.029
- Dusty Red #B9484E ΔE 0.036
- Dark Rose #B5485D ΔE 0.037
- Light Burgundy #A8415B ΔE 0.037
- Rose Red #BE013C ΔE 0.041
- Lipstick Red #C0022F ΔE 0.044
- Firebrick #B22222 ΔE 0.047
- Ruby #CA0147 ΔE 0.048
Use #B73449 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.