#B4283E
Closest named color: Rose Red (#BE013C). oklch(50.9% 0.175 17.9), rgb(180, 40, 62).
Aa
White text reads best on this color (6.33:1).
About this color
#B4283E is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.175 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.029 away. White text reads best on it, at 6.33:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.31:1 |
| White text | 6.33:1 |
Values
| HEX | #B4283E |
| RGB | rgb(180, 40, 62) |
| HSL | hsl(351, 64%, 43%) |
| OKLCH | oklch(50.9% 0.175 17.9) |
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 #B4283E | 6.33:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #B4283E | 3.31:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #B4283E text on white | 6.33:1 | AA | Lc 80.1 | Fine for body text |
| #B4283E text on black | 3.31:1 | AA large text | Lc -21.7 | 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 700.
-
Step 50
50
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F7CDCD
oklch(88.4% 0.048 18.1)
-
Step 300
300
#F2ABAC
oklch(80.9% 0.084 18.1)
-
Step 400
400
#E87B80
oklch(70.7% 0.135 18.2)
-
Step 500
500
#DE5361
oklch(63% 0.173 17.7)
-
Step 600
600
#C93048
oklch(55.5% 0.188 17.6)
-
Step 700
700 (this color)
#B4283E
oklch(50.9% 0.175 17.9)
-
Step 800
800
#8D1F2F
oklch(42.7% 0.144 18.3)
-
Step 900
900
#71212A
oklch(37.6% 0.112 18)
-
Step 950
950
#431519
oklch(27.1% 0.071 18)
#B4283E 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) | #514D3E | 0.193 |
| Deuteranopia (no green cones) | #746A3A | 0.177 |
| Tritanopia (no blue cones) | #C60032 | 0.038 |
| Achromatopsia (no color) | #5F5F5F | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4283E
#B4283E
oklch(50.9% 0.175 17.9)
- #007578
#007578
oklch(51% 0.087 197.9)
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 #B4283E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.029
- Firebrick #B22222 ΔE 0.031
- Lipstick Red #C0022F ΔE 0.031
- Rouge #AB1239 ΔE 0.033
- Brown #A52A2A ΔE 0.039
- Scarlet #BE0119 ΔE 0.040
- Dull Red #BB3F3F ΔE 0.042
- Raspberry #B00149 ΔE 0.043
Use #B4283E 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.