#B03757
Closest named color: Light Burgundy (#A8415B). oklch(52.2% 0.157 8.6), rgb(176, 55, 87).
Aa
White text reads best on this color (5.94:1).
About this color
#B03757 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.157 and its hue 9°. Its hue sits on the warm side of the wheel. The nearest named color is Light Burgundy (#A8415B), ΔE 0.021 away. White text reads best on it, at 5.94:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Light Burgundy (#A8415B) |
| Black text | 3.53:1 |
| White text | 5.94:1 |
Values
| HEX | #B03757 |
| RGB | rgb(176, 55, 87) |
| HSL | hsl(344, 52%, 45%) |
| OKLCH | oklch(52.2% 0.157 8.6) |
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 #B03757 | 5.94:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #B03757 | 3.53:1 | AA large text | Lc 25.3 | Dividers and decoration only |
| #B03757 text on white | 5.94:1 | AA | Lc 78.8 | Fine for body text |
| #B03757 text on black | 3.53:1 | AA large text | Lc -23.0 | 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
#FCF3F4
oklch(97.1% 0.01 9.5)
-
Step 100
100
#F8E4E7
oklch(93.6% 0.022 7.2)
-
Step 200
200
#F3CED3
oklch(88.4% 0.042 8.8)
-
Step 300
300
#EDADB7
oklch(81% 0.076 8.5)
-
Step 400
400
#E17F91
oklch(70.8% 0.122 8.9)
-
Step 500
500
#D55A76
oklch(63.1% 0.156 8.6)
-
Step 600
600
#C03C5F
oklch(55.6% 0.169 8.7)
-
Step 700
700 (this color)
#B03757
oklch(52.2% 0.157 8.6)
-
Step 800
800
#862740
oklch(42.7% 0.13 8.8)
-
Step 900
900
#6C2537
oklch(37.6% 0.102 7.9)
-
Step 950
950
#401720
oklch(27.1% 0.065 8.8)
#B03757 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) | #535458 | 0.175 |
| Deuteranopia (no green cones) | #736D54 | 0.161 |
| Tritanopia (no blue cones) | #C02144 | 0.041 |
| Achromatopsia (no color) | #646464 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B03757
#B03757
oklch(52.2% 0.157 8.6)
- #007A74
#007A74
oklch(52.2% 0.091 188.8)
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 #B03757, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Burgundy #A8415B ΔE 0.021
- Dark Rose #B5485D ΔE 0.034
- Light Maroon #A24857 ΔE 0.039
- Dusty Red #B9484E ΔE 0.046
- Dull Red #BB3F3F ΔE 0.048
- Raspberry #B00149 ΔE 0.052
- Rose Red #BE013C ΔE 0.053
- Rouge #AB1239 ΔE 0.055
Use #B03757 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.