#BB378A
Closest named color: Medium Violet Red (#C71585). oklch(55.8% 0.187 346.2), rgb(187, 55, 138).
Aa
White text reads best on this color (5.21:1).
About this color
#BB378A is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.187 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.037 away. White text reads best on it, at 5.21:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #BB378A |
| RGB | rgb(187, 55, 138) |
| HSL | hsl(322, 55%, 47%) |
| OKLCH | oklch(55.8% 0.187 346.2) |
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 #BB378A | 5.21:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #BB378A | 4.02:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #BB378A text on white | 5.21:1 | AA | Lc 74.8 | Content text, not long reading |
| #BB378A text on black | 4.02:1 | AA large text | Lc -26.9 | 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
#FCF3F7
oklch(97.2% 0.011 348.4)
-
Step 100
100
#F7E4ED
oklch(93.7% 0.024 347.2)
-
Step 200
200
#F1CDDF
oklch(88.4% 0.047 346.5)
-
Step 300
300
#E9ABCC
oklch(80.9% 0.084 345.9)
-
Step 400
400
#DC7CB2
oklch(70.7% 0.135 346.3)
-
Step 500
500
#CF569F
oklch(63% 0.173 346)
-
Step 600
600 (this color)
#BB378A
oklch(55.8% 0.187 346.2)
-
Step 700
700
#A02775
oklch(49.1% 0.174 346)
-
Step 800
800
#82235F
oklch(42.7% 0.144 346.1)
-
Step 900
900
#69234E
oklch(37.7% 0.112 346)
-
Step 950
950
#3E162E
oklch(27.1% 0.071 345.8)
#BB378A 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) | #475E8C | 0.207 |
| Deuteranopia (no green cones) | #6F7587 | 0.182 |
| Tritanopia (no blue cones) | #C8345C | 0.076 |
| Achromatopsia (no color) | #6C6C6C | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB378A
#BB378A
oklch(55.8% 0.187 346.2)
- #008964
#008964
oklch(55.9% 0.116 165.9)
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 #BB378A, closest first.
No curated palette has a color within ΔE 0.04 of #BB378A.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.037
- Dark Pink #CB416B ΔE 0.068
- Purpley Pink #C83CB9 ΔE 0.075
- Deep Rose #C74767 ΔE 0.076
- Dark Hot Pink #D90166 ΔE 0.079
- Light Plum #9D5783 ΔE 0.080
- Warm Purple #952E8F ΔE 0.083
- Dark Rose #B5485D ΔE 0.084
Use #BB378A 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.