#B03665
Closest named color: Light Burgundy (#A8415B). oklch(52.5% 0.162 0.9), rgb(176, 54, 101).
Aa
White text reads best on this color (5.89:1).
About this color
#B03665 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.162 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Light Burgundy (#A8415B), ΔE 0.031 away. White text reads best on it, at 5.89:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Light Burgundy (#A8415B) |
| Black text | 3.56:1 |
| White text | 5.89:1 |
Values
| HEX | #B03665 |
| RGB | rgb(176, 54, 101) |
| HSL | hsl(337, 53%, 45%) |
| OKLCH | oklch(52.5% 0.162 0.9) |
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 #B03665 | 5.89:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #B03665 | 3.56:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #B03665 text on white | 5.89:1 | AA | Lc 78.5 | Fine for body text |
| #B03665 text on black | 3.56:1 | AA large text | Lc -23.3 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F7E4E9
oklch(93.5% 0.022 359.7)
-
Step 200
200
#F1CFD7
oklch(88.5% 0.039 2)
-
Step 300
300
#E9ADBE
oklch(80.8% 0.073 0.2)
-
Step 400
400
#DC809C
oklch(70.7% 0.117 1)
-
Step 500
500
#CF5D84
oklch(63% 0.149 0.8)
-
Step 600
600 (this color)
#B03665
oklch(52.5% 0.162 0.9)
-
Step 700
700
#A0315C
oklch(49.1% 0.15 0.6)
-
Step 800
800
#822A4B
oklch(42.7% 0.124 0.8)
-
Step 900
900
#69273F
oklch(37.6% 0.098 0.3)
-
Step 950
950
#3E1825
oklch(27.1% 0.062 0.5)
#B03665 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) | #4F5566 | 0.181 |
| Deuteranopia (no green cones) | #706D62 | 0.164 |
| Tritanopia (no blue cones) | #BF2649 | 0.048 |
| Achromatopsia (no color) | #646464 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B03665
#B03665
oklch(52.5% 0.162 0.9)
- #007C6D
#007C6D
oklch(52.5% 0.095 180.5)
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 #B03665, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Burgundy #A8415B ΔE 0.031
- Dark Rose #B5485D ΔE 0.043
- Light Maroon #A24857 ΔE 0.050
- Raspberry #B00149 ΔE 0.056
- Deep Rose #C74767 ΔE 0.061
- Dark Pink #CB416B ΔE 0.061
- Dusty Red #B9484E ΔE 0.061
- Violet Red #A50055 ΔE 0.064
Use #B03665 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.