#C4304D
Closest named color: Ruby (#CA0147). oklch(54.7% 0.183 15), rgb(196, 48, 77).
Aa
White text reads best on this color (5.41:1).
About this color
#C4304D is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.183 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.033 away. White text reads best on it, at 5.41:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #C4304D |
| RGB | rgb(196, 48, 77) |
| HSL | hsl(348, 61%, 48%) |
| OKLCH | oklch(54.7% 0.183 15) |
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 #C4304D | 5.41:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #C4304D | 3.87:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #C4304D text on white | 5.41:1 | AA | Lc 75.6 | Fine for body text |
| #C4304D text on black | 3.87:1 | AA large text | Lc -26.1 | 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
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E5
oklch(93.7% 0.024 14.4)
-
Step 200
200
#F6CECF
oklch(88.6% 0.045 16.3)
-
Step 300
300
#F1ABAF
oklch(80.9% 0.083 15.3)
-
Step 400
400
#E77C86
oklch(70.8% 0.132 15.1)
-
Step 500
500
#DC5568
oklch(63.1% 0.169 14.9)
-
Step 600
600 (this color)
#C4304D
oklch(54.7% 0.183 15)
-
Step 700
700
#AC2440
oklch(49.2% 0.171 15.2)
-
Step 800
800
#8B2135
oklch(42.7% 0.141 15.1)
-
Step 900
900
#70222E
oklch(37.7% 0.11 15.2)
-
Step 950
950
#42151B
oklch(27% 0.07 15.1)
#C4304D 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) | #59564D | 0.204 |
| Deuteranopia (no green cones) | #7F7549 | 0.186 |
| Tritanopia (no blue cones) | #D7003C | 0.043 |
| Achromatopsia (no color) | #6A6A6A | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4304D
#C4304D
oklch(54.7% 0.183 15)
- #008182
#008182
oklch(54.7% 0.093 195.7)
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 #C4304D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.033
- Lipstick #D5174E ΔE 0.036
- Dull Red #BB3F3F ΔE 0.036
- Cherry #CF0234 ΔE 0.039
- Dusty Red #B9484E ΔE 0.041
- Rose Red #BE013C ΔE 0.043
- Dark Rose #B5485D ΔE 0.043
- Deep Rose #C74767 ΔE 0.044
Use #C4304D 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.