#BB374E
Closest named color: Dull Red (#BB3F3F). oklch(53.8% 0.168 14.9), rgb(187, 55, 78).
Aa
White text reads best on this color (5.57:1).
About this color
#BB374E is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.168 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.028 away. White text reads best on it, at 5.57:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.76:1 |
| White text | 5.57:1 |
Values
| HEX | #BB374E |
| RGB | rgb(187, 55, 78) |
| HSL | hsl(350, 55%, 47%) |
| OKLCH | oklch(53.8% 0.168 14.9) |
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 #BB374E | 5.57:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #BB374E | 3.76:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #BB374E text on white | 5.57:1 | AA | Lc 76.7 | Fine for body text |
| #BB374E text on black | 3.76:1 | AA large text | Lc -25.0 | 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
#EDADB1
oklch(80.8% 0.075 14.7)
-
Step 400
400
#E18088
oklch(70.7% 0.12 15.3)
-
Step 500
500
#D65B6B
oklch(63.1% 0.155 14.8)
-
Step 600
600 (this color)
#BB374E
oklch(53.8% 0.168 14.9)
-
Step 700
700
#A62E43
oklch(49.1% 0.155 15.2)
-
Step 800
800
#872838
oklch(42.7% 0.129 14.8)
-
Step 900
900
#6D2630
oklch(37.7% 0.101 14.9)
-
Step 950
950
#40171C
oklch(26.9% 0.064 15)
#BB374E 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) | #59574E | 0.186 |
| Deuteranopia (no green cones) | #7B724B | 0.170 |
| Tritanopia (no blue cones) | #CD1640 | 0.042 |
| Achromatopsia (no color) | #686868 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB374E
#BB374E
oklch(53.8% 0.168 14.9)
- #007E7F
#007E7F
oklch(53.7% 0.092 195.8)
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 #BB374E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.028
- Dusty Red #B9484E ΔE 0.031
- Dark Rose #B5485D ΔE 0.031
- Light Burgundy #A8415B ΔE 0.040
- Ruby #CA0147 ΔE 0.046
- Rose Red #BE013C ΔE 0.046
- Deep Rose #C74767 ΔE 0.047
- Lipstick Red #C0022F ΔE 0.049
Use #BB374E 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.