#BB3758
Closest named color: Dark Rose (#B5485D). oklch(54.1% 0.169 10.1), rgb(187, 55, 88).
Aa
White text reads best on this color (5.52:1).
About this color
#BB3758 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.169 and its hue 10°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Rose (#B5485D), ΔE 0.029 away. White text reads best on it, at 5.52:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.169) |
| Temperature | warm |
| Nearest name | Dark Rose (#B5485D) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #BB3758 |
| RGB | rgb(187, 55, 88) |
| HSL | hsl(345, 55%, 47%) |
| OKLCH | oklch(54.1% 0.169 10.1) |
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 #BB3758 | 5.52:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #BB3758 | 3.80:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #BB3758 text on white | 5.52:1 | AA | Lc 76.5 | Fine for body text |
| #BB3758 text on black | 3.80:1 | AA large text | Lc -25.2 | 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
#FCF3F4
oklch(97.1% 0.01 9.5)
-
Step 100
100
#F8E4E6
oklch(93.5% 0.022 10.6)
-
Step 200
200
#F3CED3
oklch(88.4% 0.042 8.8)
-
Step 300
300
#EDADB5
oklch(81% 0.076 10.6)
-
Step 400
400
#E17F8F
oklch(70.8% 0.122 10.2)
-
Step 500
500
#D55B74
oklch(63.1% 0.155 10)
-
Step 600
600 (this color)
#BB3758
oklch(54.1% 0.169 10.1)
-
Step 700
700
#A52D4C
oklch(49% 0.156 9.9)
-
Step 800
800
#86273E
oklch(42.6% 0.129 10.2)
-
Step 900
900
#6C2635
oklch(37.7% 0.1 10.2)
-
Step 950
950
#40171F
oklch(27% 0.064 10.3)
#BB3758 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) | #575859 | 0.188 |
| Deuteranopia (no green cones) | #7A7255 | 0.170 |
| Tritanopia (no blue cones) | #CC1B44 | 0.043 |
| Achromatopsia (no color) | #696969 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3758
#BB3758
oklch(54.1% 0.169 10.1)
- #00807B
#00807B
oklch(54.1% 0.093 190)
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 #BB3758, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Rose #B5485D ΔE 0.029
- Light Burgundy #A8415B ΔE 0.037
- Dusty Red #B9484E ΔE 0.038
- Dull Red #BB3F3F ΔE 0.041
- Deep Rose #C74767 ΔE 0.041
- Dark Pink #CB416B ΔE 0.044
- Ruby #CA0147 ΔE 0.047
- Rose Red #BE013C ΔE 0.051
Use #BB3758 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.