#B1377D
Closest named color: Medium Violet Red (#C71585). oklch(53.7% 0.172 349.1), rgb(177, 55, 125).
Aa
White text reads best on this color (5.65:1).
About this color
#B1377D is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.172 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.052 away. White text reads best on it, at 5.65:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #B1377D |
| RGB | rgb(177, 55, 125) |
| HSL | hsl(326, 53%, 45%) |
| OKLCH | oklch(53.7% 0.172 349.1) |
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 #B1377D | 5.65:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #B1377D | 3.71:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #B1377D text on white | 5.65:1 | AA | Lc 77.3 | Fine for body text |
| #B1377D text on black | 3.71:1 | AA large text | Lc -24.4 | 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 600.
-
Step 50
50
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F6E4EC
oklch(93.6% 0.022 348.8)
-
Step 200
200
#F0CEDD
oklch(88.4% 0.043 349.6)
-
Step 300
300
#E8ADC8
oklch(81% 0.077 349.8)
-
Step 400
400
#D97FAD
oklch(70.7% 0.124 348.8)
-
Step 500
500
#CD5B98
oklch(63.1% 0.159 349.3)
-
Step 600
600 (this color)
#B1377D
oklch(53.7% 0.172 349.1)
-
Step 700
700
#9E2E6F
oklch(49.1% 0.161 349)
-
Step 800
800
#80285A
oklch(42.7% 0.132 349.1)
-
Step 900
900
#68264A
oklch(37.8% 0.104 349.4)
-
Step 950
950
#3D172B
oklch(27% 0.066 349.6)
#B1377D 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) | #48597F | 0.191 |
| Deuteranopia (no green cones) | #6B6F7A | 0.170 |
| Tritanopia (no blue cones) | #BE3255 | 0.066 |
| Achromatopsia (no color) | #676767 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1377D
#B1377D
oklch(53.7% 0.172 349.1)
- #008163
#008163
oklch(53.6% 0.107 169.2)
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 #B1377D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.052
- Light Burgundy #A8415B ΔE 0.062
- Light Plum #9D5783 ΔE 0.068
- Dark Pink #CB416B ΔE 0.069
- Dark Rose #B5485D ΔE 0.069
- Warm Purple #952E8F ΔE 0.072
- Deep Rose #C74767 ΔE 0.073
- Red Violet #9E0168 ΔE 0.077
Use #B1377D 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.