#B0043B
Closest named color: Rouge (#AB1239). oklch(48.3% 0.191 14.5), rgb(176, 4, 59).
Aa
White text reads best on this color (7.17:1).
About this color
#B0043B is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.191 and its hue 14°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.012 away. White text reads best on it, at 7.17:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.191) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.92:1 |
| White text | 7.17:1 |
Values
| HEX | #B0043B |
| RGB | rgb(176, 4, 59) |
| HSL | hsl(341, 96%, 35%) |
| OKLCH | oklch(48.3% 0.191 14.5) |
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 #B0043B | 7.17:1 | AAA | Lc -87.5 | Fine for body text |
| Black text on #B0043B | 2.92:1 | Fails | Lc 21.6 | Dividers and decoration only |
| #B0043B text on white | 7.17:1 | AAA | Lc 82.5 | Fine for body text |
| #B0043B text on black | 2.92:1 | Fails | Lc -19.4 | 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
#FEF2F3
oklch(97.1% 0.013 11.5)
-
Step 100
100
#FBE3E4
oklch(93.6% 0.026 14.7)
-
Step 200
200
#F9CCCE
oklch(88.5% 0.051 15.2)
-
Step 300
300
#F6A8AE
oklch(80.8% 0.092 14.3)
-
Step 400
400
#EE7683
oklch(70.8% 0.148 14.9)
-
Step 500
500
#E44A65
oklch(63.1% 0.19 14.3)
-
Step 600
600
#CF204C
oklch(55.5% 0.205 14.5)
-
Step 700
700 (this color)
#B0043B
oklch(48.3% 0.191 14.5)
-
Step 800
800
#911333
oklch(42.7% 0.158 14.3)
-
Step 900
900
#751B2C
oklch(37.8% 0.123 14.9)
-
Step 950
950
#45121A
oklch(27.1% 0.078 14.9)
#B0043B 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) | #44423B | 0.216 |
| Deuteranopia (no green cones) | #6C6336 | 0.196 |
| Tritanopia (no blue cones) | #C20022 | 0.048 |
| Achromatopsia (no color) | #575757 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B0043B
#B0043B
oklch(48.3% 0.191 14.5)
- #006D6C
#006D6C
oklch(48.4% 0.083 193.7)
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 #B0043B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.012
- Raspberry #B00149 ΔE 0.021
- Rose Red #BE013C ΔE 0.029
- Lipstick Red #C0022F ΔE 0.038
- Cranberry #9E003A ΔE 0.040
- Firebrick #B22222 ΔE 0.044
- Brown #A52A2A ΔE 0.046
- Scarlet #BE0119 ΔE 0.047
Use #B0043B 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.