#BF181A
Closest named color: Scarlet (#BE0119). oklch(51.4% 0.198 27.5), rgb(191, 24, 26).
Aa
White text reads best on this color (6.24:1).
About this color
#BF181A is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.198 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.013 away. White text reads best on it, at 6.24:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.36:1 |
| White text | 6.24:1 |
Values
| HEX | #BF181A |
| RGB | rgb(191, 24, 26) |
| HSL | hsl(359, 78%, 42%) |
| OKLCH | oklch(51.4% 0.198 27.5) |
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 #BF181A | 6.24:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #BF181A | 3.36:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #BF181A text on white | 6.24:1 | AA | Lc 79.1 | Fine for body text |
| #BF181A text on black | 3.36:1 | AA large text | Lc -22.7 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FBCDC6
oklch(88.6% 0.053 28.3)
-
Step 300
300
#F8A99F
oklch(80.9% 0.095 27.3)
-
Step 400
400
#F1766A
oklch(70.7% 0.154 27.3)
-
Step 500
500
#E84A41
oklch(63.1% 0.196 27.5)
-
Step 600
600
#D31D1F
oklch(55.5% 0.213 27.5)
-
Step 700
700 (this color)
#BF181A
oklch(51.4% 0.198 27.5)
-
Step 800
800
#941112
oklch(42.7% 0.164 27.6)
-
Step 900
900
#771A17
oklch(37.7% 0.128 27.3)
-
Step 950
950
#46120E
oklch(27% 0.081 28.1)
#BF181A 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) | #534A17 | 0.217 |
| Deuteranopia (no green cones) | #7B6D0E | 0.195 |
| Tritanopia (no blue cones) | #D3001C | 0.040 |
| Achromatopsia (no color) | #606060 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BF181A
#BF181A
oklch(51.4% 0.198 27.5)
- #007581
#007581
oklch(51.4% 0.088 207.3)
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 #BF181A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.013
- Lipstick Red #C0022F ΔE 0.026
- Firebrick #B22222 ΔE 0.026
- Rufous #AE2012 ΔE 0.035
- Rusty Red #AF2F0D ΔE 0.039
- Cherry #CF0234 ΔE 0.041
- Rose Red #BE013C ΔE 0.041
- Rust Red #AA2704 ΔE 0.045
Use #BF181A 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.