#B63B51
Closest named color: Dark Rose (#B5485D). oklch(53.5% 0.158 13.8), rgb(182, 59, 81).
Aa
White text reads best on this color (5.62:1).
About this color
#B63B51 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.158 and its hue 14°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Rose (#B5485D), ΔE 0.025 away. White text reads best on it, at 5.62:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Dark Rose (#B5485D) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #B63B51 |
| RGB | rgb(182, 59, 81) |
| HSL | hsl(349, 51%, 47%) |
| OKLCH | oklch(53.5% 0.158 13.8) |
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 #B63B51 | 5.62:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #B63B51 | 3.73:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #B63B51 text on white | 5.62:1 | AA | Lc 77.2 | Fine for body text |
| #B63B51 text on black | 3.73:1 | AA large text | Lc -24.6 | 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
#F7E5E6
oklch(93.7% 0.02 13.6)
-
Step 200
200
#F2CFD1
oklch(88.5% 0.039 14)
-
Step 300
300
#EBAEB3
oklch(80.9% 0.072 13.3)
-
Step 400
400
#DE828B
oklch(70.8% 0.114 14.1)
-
Step 500
500
#D25F6F
oklch(63.1% 0.146 13.6)
-
Step 600
600 (this color)
#B63B51
oklch(53.5% 0.158 13.8)
-
Step 700
700
#A33347
oklch(49.2% 0.147 14)
-
Step 800
800
#842B3A
oklch(42.6% 0.122 14)
-
Step 900
900
#6B2832
oklch(37.7% 0.096 13.9)
-
Step 950
950
#3F181D
oklch(27% 0.061 14.2)
#B63B51 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) | #595751 | 0.175 |
| Deuteranopia (no green cones) | #79714E | 0.161 |
| Tritanopia (no blue cones) | #C72244 | 0.040 |
| Achromatopsia (no color) | #676767 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B63B51
#B63B51
oklch(53.5% 0.158 13.8)
- #007D7D
#007D7D
oklch(53.4% 0.091 194.8)
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 #B63B51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Rose #B5485D ΔE 0.025
- Dusty Red #B9484E ΔE 0.029
- Light Burgundy #A8415B ΔE 0.030
- Dull Red #BB3F3F ΔE 0.030
- Light Maroon #A24857 ΔE 0.041
- Deep Rose #C74767 ΔE 0.049
- Rose Red #BE013C ΔE 0.052
- Ruby #CA0147 ΔE 0.055
Use #B63B51 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.