#C42F47
Closest named color: Dull Red (#BB3F3F). oklch(54.5% 0.184 17.3), rgb(196, 47, 71).
Aa
White text reads best on this color (5.46:1).
About this color
#C42F47 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.184 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.032 away. White text reads best on it, at 5.46:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.184) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.84:1 |
| White text | 5.46:1 |
Values
| HEX | #C42F47 |
| RGB | rgb(196, 47, 71) |
| HSL | hsl(350, 61%, 48%) |
| OKLCH | oklch(54.5% 0.184 17.3) |
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 #C42F47 | 5.46:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #C42F47 | 3.84:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #C42F47 text on white | 5.46:1 | AA | Lc 75.9 | Fine for body text |
| #C42F47 text on black | 3.84:1 | AA large text | Lc -25.9 | 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
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F6CECE
oklch(88.6% 0.045 18)
-
Step 300
300
#F1ABAD
oklch(80.8% 0.083 17.2)
-
Step 400
400
#E77C82
oklch(70.7% 0.132 17.5)
-
Step 500
500
#DD5563
oklch(63.2% 0.17 17.3)
-
Step 600
600 (this color)
#C42F47
oklch(54.5% 0.184 17.3)
-
Step 700
700
#AC233B
oklch(49% 0.171 17.3)
-
Step 800
800
#8C2131
oklch(42.8% 0.142 17.6)
-
Step 900
900
#71222B
oklch(37.8% 0.111 17.7)
-
Step 950
950
#42151A
oklch(26.9% 0.07 16.4)
#C42F47 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) | #5A5547 | 0.203 |
| Deuteranopia (no green cones) | #7F7543 | 0.187 |
| Tritanopia (no blue cones) | #D70039 | 0.042 |
| Achromatopsia (no color) | #696969 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C42F47
#C42F47
oklch(54.5% 0.184 17.3)
- #008083
#008083
oklch(54.4% 0.093 197.7)
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 #C42F47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.032
- Ruby #CA0147 ΔE 0.034
- Cherry #CF0234 ΔE 0.034
- Lipstick #D5174E ΔE 0.038
- Dusty Red #B9484E ΔE 0.040
- Rose Red #BE013C ΔE 0.041
- Lipstick Red #C0022F ΔE 0.041
- Dark Rose #B5485D ΔE 0.046
Use #C42F47 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.