#B01C3D
Closest named color: Rouge (#AB1239). oklch(49.3% 0.18 15.8), rgb(176, 28, 61).
Aa
White text reads best on this color (6.81:1).
About this color
#B01C3D is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.180 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.016 away. White text reads best on it, at 6.81:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.180) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.07:1 |
| White text | 6.81:1 |
Values
| HEX | #B01C3D |
| RGB | rgb(176, 28, 61) |
| HSL | hsl(347, 73%, 40%) |
| OKLCH | oklch(49.3% 0.18 15.8) |
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 #B01C3D | 6.81:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #B01C3D | 3.07:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #B01C3D text on white | 6.81:1 | AA | Lc 81.8 | Fine for body text |
| #B01C3D text on black | 3.07:1 | AA large text | Lc -20.1 | 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
#FDF2F3
oklch(97% 0.012 11)
-
Step 100
100
#FAE3E4
oklch(93.5% 0.025 14.6)
-
Step 200
200
#F8CDCE
oklch(88.6% 0.049 16.5)
-
Step 300
300
#F4AAAE
oklch(81% 0.087 15.6)
-
Step 400
400
#EA7983
oklch(70.7% 0.139 15.7)
-
Step 500
500
#E05064
oklch(63.1% 0.179 15.7)
-
Step 600
600
#CB2C4B
oklch(55.6% 0.193 16)
-
Step 700
700 (this color)
#B01C3D
oklch(49.3% 0.18 15.8)
-
Step 800
800
#8E1B32
oklch(42.6% 0.149 15.8)
-
Step 900
900
#721F2C
oklch(37.6% 0.116 15.8)
-
Step 950
950
#43141A
oklch(27% 0.073 15.8)
#B01C3D 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) | #4A473D | 0.201 |
| Deuteranopia (no green cones) | #6F6639 | 0.184 |
| Tritanopia (no blue cones) | #C1002B | 0.038 |
| Achromatopsia (no color) | #5B5B5B | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B01C3D
#B01C3D
oklch(49.3% 0.18 15.8)
- #007071
#007071
oklch(49.4% 0.084 195.9)
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 #B01C3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.016
- Rose Red #BE013C ΔE 0.028
- Raspberry #B00149 ΔE 0.029
- Lipstick Red #C0022F ΔE 0.034
- Firebrick #B22222 ΔE 0.035
- Brown #A52A2A ΔE 0.038
- Scarlet #BE0119 ΔE 0.044
- Rufous #AE2012 ΔE 0.045
Use #B01C3D 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.