#B6031F
Closest named color: Scarlet (#BE0119). oklch(49% 0.197 24.4), rgb(182, 3, 31).
Aa
White text reads best on this color (6.94:1).
About this color
#B6031F is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.197 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.017 away. White text reads best on it, at 6.94:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.02:1 |
| White text | 6.94:1 |
Values
| HEX | #B6031F |
| RGB | rgb(182, 3, 31) |
| HSL | hsl(351, 97%, 36%) |
| OKLCH | oklch(49% 0.197 24.4) |
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 #B6031F | 6.94:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #B6031F | 3.02:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #B6031F text on white | 6.94:1 | AA | Lc 81.5 | Fine for body text |
| #B6031F text on black | 3.02:1 | AA large text | Lc -20.4 | 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 700.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FBCCC8
oklch(88.5% 0.054 23.9)
-
Step 300
300
#F8A9A2
oklch(80.9% 0.094 25)
-
Step 400
400
#F17670
oklch(70.8% 0.153 24.6)
-
Step 500
500
#E8494A
oklch(63.1% 0.196 24.4)
-
Step 600
600
#D31C2C
oklch(55.6% 0.212 24.5)
-
Step 700
700 (this color)
#B6031F
oklch(49% 0.197 24.4)
-
Step 800
800
#94101C
oklch(42.7% 0.163 24.4)
-
Step 900
900
#771A1D
oklch(37.8% 0.127 24.2)
-
Step 950
950
#461211
oklch(27% 0.08 25.2)
#B6031F 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) | #4A431D | 0.219 |
| Deuteranopia (no green cones) | #726616 | 0.198 |
| Tritanopia (no blue cones) | #C90014 | 0.041 |
| Achromatopsia (no color) | #5A5A5A | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B6031F
#B6031F
oklch(49% 0.197 24.4)
- #006E76
#006E76
oklch(49.1% 0.084 203.6)
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 #B6031F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.017
- Firebrick #B22222 ΔE 0.020
- Lipstick Red #C0022F ΔE 0.026
- Rufous #AE2012 ΔE 0.026
- Rouge #AB1239 ΔE 0.035
- Rose Red #BE013C ΔE 0.036
- Brown #A52A2A ΔE 0.039
- Rust Red #AA2704 ΔE 0.040
Use #B6031F 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.