#B72B3F
Closest named color: Rose Red (#BE013C). oklch(51.7% 0.175 18.4), rgb(183, 43, 63).
Aa
White text reads best on this color (6.12:1).
About this color
#B72B3F is a medium-dark, vivid red. In OKLCH its lightness is 52%, 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 0.030 away. White text reads best on it, at 6.12:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.43:1 |
| White text | 6.12:1 |
Values
| HEX | #B72B3F |
| RGB | rgb(183, 43, 63) |
| HSL | hsl(351, 62%, 44%) |
| OKLCH | oklch(51.7% 0.175 18.4) |
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 #B72B3F | 6.12:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #B72B3F | 3.43:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #B72B3F text on white | 6.12:1 | AA | Lc 79.2 | Fine for body text |
| #B72B3F text on black | 3.43:1 | AA large text | Lc -22.6 | 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
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F7CDCD
oklch(88.4% 0.048 18.1)
-
Step 300
300
#F3ABAC
oklch(81% 0.085 18.2)
-
Step 400
400
#E97B80
oklch(70.8% 0.136 18.3)
-
Step 500
500
#DE5360
oklch(63% 0.173 18.1)
-
Step 600
600
#CA3046
oklch(55.6% 0.189 18.5)
-
Step 700
700 (this color)
#B72B3F
oklch(51.7% 0.175 18.4)
-
Step 800
800
#8D1F2E
oklch(42.7% 0.145 18.8)
-
Step 900
900
#722129
oklch(37.8% 0.113 18.9)
-
Step 950
950
#431518
oklch(27.1% 0.071 19.4)
#B72B3F 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) | #534F3F | 0.194 |
| Deuteranopia (no green cones) | #776C3B | 0.176 |
| Tritanopia (no blue cones) | #C90034 | 0.039 |
| Achromatopsia (no color) | #626262 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B72B3F
#B72B3F
oklch(51.7% 0.175 18.4)
- #00777B
#00777B
oklch(51.7% 0.088 198.9)
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 #B72B3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.030
- Lipstick Red #C0022F ΔE 0.031
- Firebrick #B22222 ΔE 0.033
- Dull Red #BB3F3F ΔE 0.035
- Scarlet #BE0119 ΔE 0.041
- Rouge #AB1239 ΔE 0.041
- Ruby #CA0147 ΔE 0.045
- Brown #A52A2A ΔE 0.045
Use #B72B3F 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.