#B4638B
Closest named color: Mauve (#AE7181). oklch(60.4% 0.115 350.1), rgb(180, 99, 139).
Aa
Black text reads best on this color (5.09:1).
About this color
#B4638B is a medium-dark, moderately saturated red. In OKLCH its lightness is 60%, its chroma 0.115 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Mauve (#AE7181), ΔE 0.043 away. Black text reads best on it, at 5.09:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Mauve (#AE7181) |
| Black text | 5.09:1 |
| White text | 4.11:1 |
Values
| HEX | #B4638B |
| RGB | rgb(180, 99, 139) |
| HSL | hsl(330, 35%, 55%) |
| OKLCH | oklch(60.4% 0.115 350.1) |
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 #B4638B | 4.11:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #B4638B | 5.09:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #B4638B text on white | 4.11:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #B4638B text on black | 5.09:1 | AA | Lc -33.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#FAF3F6
oklch(97% 0.008 349.2)
-
Step 100
100
#F3E6EB
oklch(93.7% 0.016 352)
-
Step 200
200
#EAD1DC
oklch(88.4% 0.031 349.3)
-
Step 300
300
#DEB2C6
oklch(80.9% 0.057 349.4)
-
Step 400
400
#CC89A8
oklch(70.7% 0.091 350.4)
-
Step 500
500 (this color)
#B4638B
oklch(60.4% 0.115 350.1)
-
Step 600
600
#A8517D
oklch(55.6% 0.125 350.3)
-
Step 700
700
#90426A
oklch(49.2% 0.116 350.2)
-
Step 800
800
#753656
oklch(42.7% 0.097 350.3)
-
Step 900
900
#5F3047
oklch(37.8% 0.075 350.6)
-
Step 950
950
#381C2A
oklch(27% 0.049 349.5)
#B4638B 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) | #6B748C | 0.124 |
| Deuteranopia (no green cones) | #808289 | 0.113 |
| Tritanopia (no blue cones) | #BE6172 | 0.040 |
| Achromatopsia (no color) | #7D7D7D | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4638B
#B4638B
oklch(60.4% 0.115 350.1)
- #179777
#179777
oklch(60.4% 0.115 170.1)
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 #B4638B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mauve #AE7181 ΔE 0.043
- Dusky Rose #BA6873 ΔE 0.044
- Light Plum #9D5783 ΔE 0.054
- Dark Lilac #9C6DA5 ΔE 0.056
- Dusty Rose #C0737A ΔE 0.060
- Faded Purple #916E99 ΔE 0.064
- Soft Purple #A66FB5 ΔE 0.066
- Deep Rose #C74767 ΔE 0.070
Use #B4638B 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.