#B1437E
Closest named color: Light Plum (#9D5783). oklch(55% 0.156 350.2), rgb(177, 67, 126).
Aa
White text reads best on this color (5.28:1).
About this color
#B1437E is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.156 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Light Plum (#9D5783), ΔE 0.051 away. White text reads best on it, at 5.28:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Light Plum (#9D5783) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #B1437E |
| RGB | rgb(177, 67, 126) |
| HSL | hsl(328, 45%, 48%) |
| OKLCH | oklch(55% 0.156 350.2) |
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 #B1437E | 5.28:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #B1437E | 3.97:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #B1437E text on white | 5.28:1 | AA | Lc 75.5 | Fine for body text |
| #B1437E text on black | 3.97:1 | AA large text | Lc -26.2 | 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 600.
-
Step 50
50
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F5E5EC
oklch(93.7% 0.02 349.1)
-
Step 200
200
#EECFDD
oklch(88.4% 0.039 348.9)
-
Step 300
300
#E5AFC7
oklch(81% 0.07 350.4)
-
Step 400
400
#D583AA
oklch(70.7% 0.111 350.3)
-
Step 500
500
#C86195
oklch(63.1% 0.143 350.4)
-
Step 600
600 (this color)
#B1437E
oklch(55% 0.156 350.2)
-
Step 700
700
#9A366C
oklch(49.2% 0.145 350.3)
-
Step 800
800
#7D2D58
oklch(42.7% 0.121 350.1)
-
Step 900
900
#652A48
oklch(37.8% 0.093 350.7)
-
Step 950
950
#3B192A
oklch(26.9% 0.059 350.5)
#B1437E 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) | #515F80 | 0.172 |
| Deuteranopia (no green cones) | #70737B | 0.155 |
| Tritanopia (no blue cones) | #BD3E5B | 0.057 |
| Achromatopsia (no color) | #6C6C6C | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1437E
#B1437E
oklch(55% 0.156 350.2)
- #008668
#008668
oklch(55.1% 0.109 169.9)
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 #B1437E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Plum #9D5783 ΔE 0.051
- Light Burgundy #A8415B ΔE 0.056
- Dark Rose #B5485D ΔE 0.056
- Dark Pink #CB416B ΔE 0.059
- Deep Rose #C74767 ΔE 0.061
- Medium Violet Red #C71585 ΔE 0.066
- Light Maroon #A24857 ΔE 0.069
- Light Eggplant #894585 ΔE 0.078
Use #B1437E 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.