#BB3978
Closest named color: Dark Pink (#CB416B). oklch(55.3% 0.175 354.7), rgb(187, 57, 120).
Aa
White text reads best on this color (5.29:1).
About this color
#BB3978 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.175 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Pink (#CB416B), ΔE 0.046 away. White text reads best on it, at 5.29:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Dark Pink (#CB416B) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #BB3978 |
| RGB | rgb(187, 57, 120) |
| HSL | hsl(331, 53%, 48%) |
| OKLCH | oklch(55.3% 0.175 354.7) |
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 #BB3978 | 5.29:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #BB3978 | 3.96:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #BB3978 text on white | 5.29:1 | AA | Lc 75.3 | Fine for body text |
| #BB3978 text on black | 3.96:1 | AA large text | Lc -26.4 | 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
#F7E4EB
oklch(93.6% 0.023 353.2)
-
Step 200
200
#F2CEDB
oklch(88.6% 0.044 354.3)
-
Step 300
300
#EAACC3
oklch(80.9% 0.078 354.9)
-
Step 400
400
#DD7EA5
oklch(70.7% 0.125 354.7)
-
Step 500
500
#D1598F
oklch(63.1% 0.161 354.6)
-
Step 600
600 (this color)
#BB3978
oklch(55.3% 0.175 354.7)
-
Step 700
700
#A22B66
oklch(49.1% 0.164 354.6)
-
Step 800
800
#832653
oklch(42.7% 0.134 354.6)
-
Step 900
900
#6A2545
oklch(37.8% 0.105 354.5)
-
Step 950
950
#3E1628
oklch(26.8% 0.067 354.4)
#BB3978 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) | #505C7A | 0.196 |
| Deuteranopia (no green cones) | #747475 | 0.175 |
| Tritanopia (no blue cones) | #C92E54 | 0.058 |
| Achromatopsia (no color) | #6B6B6B | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3978
#BB3978
oklch(55.3% 0.175 354.7)
- #00866E
#00866E
oklch(55.3% 0.105 174.2)
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 #BB3978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pink #CB416B ΔE 0.046
- Medium Violet Red #C71585 ΔE 0.049
- Deep Rose #C74767 ΔE 0.052
- Dark Rose #B5485D ΔE 0.056
- Light Burgundy #A8415B ΔE 0.060
- Dark Hot Pink #D90166 ΔE 0.066
- Light Plum #9D5783 ΔE 0.073
- Cerise #DE0C62 ΔE 0.074
Use #BB3978 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.