#B7042E
Closest named color: Lipstick Red (#C0022F). oklch(49.4% 0.197 20.2), rgb(183, 4, 46).
Aa
White text reads best on this color (6.83:1).
About this color
#B7042E is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.197 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.019 away. White text reads best on it, at 6.83:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.07:1 |
| White text | 6.83:1 |
Values
| HEX | #B7042E |
| RGB | rgb(183, 4, 46) |
| HSL | hsl(346, 96%, 37%) |
| OKLCH | oklch(49.4% 0.197 20.2) |
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 #B7042E | 6.83:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #B7042E | 3.07:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #B7042E text on white | 6.83:1 | AA | Lc 81.1 | Fine for body text |
| #B7042E text on black | 3.07:1 | AA large text | Lc -20.7 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FACCCB
oklch(88.5% 0.052 19.6)
-
Step 300
300
#F8A8A7
oklch(80.9% 0.095 20.1)
-
Step 400
400
#F07578
oklch(70.7% 0.152 20.2)
-
Step 500
500
#E74856
oklch(63% 0.195 19.9)
-
Step 600
600
#D31A3B
oklch(55.7% 0.212 20.1)
-
Step 700
700 (this color)
#B7042E
oklch(49.4% 0.197 20.2)
-
Step 800
800
#940E26
oklch(42.8% 0.163 20.3)
-
Step 900
900
#771923
oklch(37.8% 0.128 20.4)
-
Step 950
950
#461115
oklch(27% 0.081 20.2)
#B7042E 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) | #4A442E | 0.219 |
| Deuteranopia (no green cones) | #726728 | 0.200 |
| Tritanopia (no blue cones) | #CA001C | 0.043 |
| Achromatopsia (no color) | #5B5B5B | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B7042E
#B7042E
oklch(49.4% 0.197 20.2)
- #007075
#007075
oklch(49.6% 0.084 200.2)
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 #B7042E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.019
- Rose Red #BE013C ΔE 0.022
- Scarlet #BE0119 ΔE 0.024
- Rouge #AB1239 ΔE 0.027
- Firebrick #B22222 ΔE 0.028
- Rufous #AE2012 ΔE 0.038
- Raspberry #B00149 ΔE 0.041
- Brown #A52A2A ΔE 0.043
Use #B7042E 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.