#B04145
Closest named color: Dull Red (#BB3F3F). oklch(53% 0.145 21.4), rgb(176, 65, 69).
Aa
White text reads best on this color (5.69:1).
About this color
#B04145 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.145 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.022 away. White text reads best on it, at 5.69:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.145) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #B04145 |
| RGB | rgb(176, 65, 69) |
| HSL | hsl(358, 46%, 47%) |
| OKLCH | oklch(53% 0.145 21.4) |
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 #B04145 | 5.69:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #B04145 | 3.68:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #B04145 text on white | 5.69:1 | AA | Lc 77.7 | Fine for body text |
| #B04145 text on black | 3.68:1 | AA large text | Lc -24.1 | 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
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F0D0CF
oklch(88.4% 0.036 20)
-
Step 300
300
#E8B1AE
oklch(81% 0.065 22.2)
-
Step 400
400
#DA8684
oklch(70.8% 0.104 21.5)
-
Step 500
500
#CE6565
oklch(63.2% 0.133 21.6)
-
Step 600
600 (this color)
#B04145
oklch(53% 0.145 21.4)
-
Step 700
700
#9F3A3D
oklch(49.2% 0.134 21.8)
-
Step 800
800
#813133
oklch(42.8% 0.111 21.6)
-
Step 900
900
#682C2D
oklch(37.7% 0.086 21.1)
-
Step 950
950
#3D1A1A
oklch(26.9% 0.055 21.4)
#B04145 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) | #5D5844 | 0.157 |
| Deuteranopia (no green cones) | #796F42 | 0.144 |
| Tritanopia (no blue cones) | #C12B43 | 0.041 |
| Achromatopsia (no color) | #676767 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B04145
#B04145
oklch(53% 0.145 21.4)
- #007B81
#007B81
oklch(53% 0.09 200.8)
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 #B04145, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.022
- Dusty Red #B9484E ΔE 0.025
- Dark Rose #B5485D ΔE 0.034
- Light Maroon #A24857 ΔE 0.034
- Light Burgundy #A8415B ΔE 0.036
- Firebrick #B22222 ΔE 0.050
- Rusty Red #AF2F0D ΔE 0.052
- Brown #A52A2A ΔE 0.053
Use #B04145 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.