#BB3173
Closest named color: Medium Violet Red (#C71585). oklch(54.3% 0.183 356), rgb(187, 49, 115).
Aa
White text reads best on this color (5.52:1).
About this color
#BB3173 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.183 and its hue 356°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.046 away. White text reads best on it, at 5.52:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.79:1 |
| White text | 5.52:1 |
Values
| HEX | #BB3173 |
| RGB | rgb(187, 49, 115) |
| HSL | hsl(331, 58%, 46%) |
| OKLCH | oklch(54.3% 0.183 356) |
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 #BB3173 | 5.52:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #BB3173 | 3.79:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #BB3173 text on white | 5.52:1 | AA | Lc 76.4 | Fine for body text |
| #BB3173 text on black | 3.79:1 | AA large text | Lc -25.3 | 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
#FCF3F6
oklch(97.2% 0.01 354.9)
-
Step 100
100
#F8E4EA
oklch(93.7% 0.023 357.4)
-
Step 200
200
#F3CDDA
oklch(88.4% 0.046 355.5)
-
Step 300
300
#EDABC2
oklch(81% 0.082 356.4)
-
Step 400
400
#E07CA3
oklch(70.7% 0.131 356.2)
-
Step 500
500
#D4568D
oklch(63.1% 0.168 355.8)
-
Step 600
600 (this color)
#BB3173
oklch(54.3% 0.183 356)
-
Step 700
700
#A52664
oklch(49.1% 0.171 355.9)
-
Step 800
800
#862251
oklch(42.7% 0.141 356.3)
-
Step 900
900
#6C2343
oklch(37.8% 0.109 356.5)
-
Step 950
950
#401527
oklch(27% 0.071 356.8)
#BB3173 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) | #4C5875 | 0.205 |
| Deuteranopia (no green cones) | #737270 | 0.183 |
| Tritanopia (no blue cones) | #CA214E | 0.060 |
| Achromatopsia (no color) | #696969 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3173
#BB3173
oklch(54.3% 0.183 356)
- #00826D
#00826D
oklch(54.2% 0.101 176.1)
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 #BB3173, closest first.
No curated palette has a color within ΔE 0.04 of #BB3173.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.046
- Dark Pink #CB416B ΔE 0.051
- Deep Rose #C74767 ΔE 0.057
- Light Burgundy #A8415B ΔE 0.060
- Dark Rose #B5485D ΔE 0.060
- Dark Hot Pink #D90166 ΔE 0.061
- Ruby #CA0147 ΔE 0.068
- Cerise #DE0C62 ΔE 0.071
Use #BB3173 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.