#B83040
Closest named color: Dull Red (#BB3F3F). oklch(52.4% 0.172 19.2), rgb(184, 48, 64).
Aa
White text reads best on this color (5.94:1).
About this color
#B83040 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.172 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.028 away. White text reads best on it, at 5.94:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.53:1 |
| White text | 5.94:1 |
Values
| HEX | #B83040 |
| RGB | rgb(184, 48, 64) |
| HSL | hsl(353, 59%, 45%) |
| OKLCH | oklch(52.4% 0.172 19.2) |
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 #B83040 | 5.94:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #B83040 | 3.53:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #B83040 text on white | 5.94:1 | AA | Lc 78.4 | Fine for body text |
| #B83040 text on black | 3.53:1 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F9E4E4
oklch(93.6% 0.023 17.6)
-
Step 200
200
#F4CECE
oklch(88.4% 0.043 18)
-
Step 300
300
#EFADAD
oklch(81% 0.078 18.9)
-
Step 400
400
#E37F81
oklch(70.7% 0.124 19.4)
-
Step 500
500
#D85B62
oklch(63.2% 0.157 19.4)
-
Step 600
600 (this color)
#B83040
oklch(52.4% 0.172 19.2)
-
Step 700
700
#A82C3A
oklch(49.1% 0.159 19.3)
-
Step 800
800
#892730
oklch(42.8% 0.132 19.7)
-
Step 900
900
#6E252B
oklch(37.6% 0.104 18.8)
-
Step 950
950
#411719
oklch(27% 0.066 19.7)
#B83040 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) | #565140 | 0.189 |
| Deuteranopia (no green cones) | #796E3C | 0.172 |
| Tritanopia (no blue cones) | #CA0037 | 0.042 |
| Achromatopsia (no color) | #646464 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B83040
#B83040
oklch(52.4% 0.172 19.2)
- #00797D
#00797D
oklch(52.3% 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 #B83040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.028
- Lipstick Red #C0022F ΔE 0.036
- Rose Red #BE013C ΔE 0.036
- Firebrick #B22222 ΔE 0.036
- Dusty Red #B9484E ΔE 0.040
- Scarlet #BE0119 ΔE 0.044
- Dark Rose #B5485D ΔE 0.047
- Light Burgundy #A8415B ΔE 0.047
Use #B83040 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.