#B03E48
Closest named color: Dull Red (#BB3F3F). oklch(52.7% 0.148 18.7), rgb(176, 62, 72).
Aa
White text reads best on this color (5.78:1).
About this color
#B03E48 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.148 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.026 away. White text reads best on it, at 5.78:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.62:1 |
| White text | 5.78:1 |
Values
| HEX | #B03E48 |
| RGB | rgb(176, 62, 72) |
| HSL | hsl(355, 48%, 47%) |
| OKLCH | oklch(52.7% 0.148 18.7) |
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 #B03E48 | 5.78:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #B03E48 | 3.62:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #B03E48 text on white | 5.78:1 | AA | Lc 78.1 | Fine for body text |
| #B03E48 text on black | 3.62:1 | AA large text | Lc -23.7 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F7E5E5
oklch(93.6% 0.02 17.5)
-
Step 200
200
#F1D0D0
oklch(88.5% 0.037 17.9)
-
Step 300
300
#E9B0B0
oklch(81% 0.067 18.6)
-
Step 400
400
#DB8586
oklch(70.8% 0.106 19.3)
-
Step 500
500
#CF6368
oklch(63.1% 0.137 19)
-
Step 600
600 (this color)
#B03E48
oklch(52.7% 0.148 18.7)
-
Step 700
700
#A03841
oklch(49.1% 0.138 18.8)
-
Step 800
800
#822F36
oklch(42.7% 0.114 18.4)
-
Step 900
900
#692B2F
oklch(37.8% 0.089 18.4)
-
Step 950
950
#3E1A1B
oklch(27.1% 0.056 19.8)
#B03E48 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) | #5B5648 | 0.160 |
| Deuteranopia (no green cones) | #786E45 | 0.148 |
| Tritanopia (no blue cones) | #C02742 | 0.039 |
| Achromatopsia (no color) | #656565 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B03E48
#B03E48
oklch(52.7% 0.148 18.7)
- #007A7E
#007A7E
oklch(52.6% 0.089 198.8)
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 #B03E48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.026
- Dusty Red #B9484E ΔE 0.029
- Light Burgundy #A8415B ΔE 0.030
- Dark Rose #B5485D ΔE 0.032
- Light Maroon #A24857 ΔE 0.033
- Firebrick #B22222 ΔE 0.049
- Brown #A52A2A ΔE 0.051
- Rusty Red #AF2F0D ΔE 0.055
Use #B03E48 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.