#CF3740
Closest named color: Faded Red (#D3494E). oklch(57% 0.188 22.5), rgb(207, 55, 64).
Aa
White text reads best on this color (4.91:1).
About this color
#CF3740 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.188 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Faded Red (#D3494E), ΔE 0.031 away. White text reads best on it, at 4.91:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.188) |
| Temperature | warm |
| Nearest name | Faded Red (#D3494E) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #CF3740 |
| RGB | rgb(207, 55, 64) |
| HSL | hsl(356, 61%, 51%) |
| OKLCH | oklch(57% 0.188 22.5) |
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 #CF3740 | 4.91:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #CF3740 | 4.27:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #CF3740 text on white | 4.91:1 | AA | Lc 72.7 | Content text, not long reading |
| #CF3740 text on black | 4.27:1 | AA large text | Lc -29.0 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E2
oklch(93.6% 0.024 23.9)
-
Step 200
200
#F7CECB
oklch(88.6% 0.047 23)
-
Step 300
300
#F3ABA7
oklch(80.9% 0.085 22.7)
-
Step 400
400
#E97C79
oklch(70.8% 0.135 22.7)
-
Step 500
500
#DF5457
oklch(63.1% 0.174 22.3)
-
Step 600
600 (this color)
#CF3740
oklch(57% 0.188 22.5)
-
Step 700
700
#AE222E
oklch(49.1% 0.175 22.7)
-
Step 800
800
#8D2027
oklch(42.7% 0.144 22.7)
-
Step 900
900
#722124
oklch(37.7% 0.114 22.4)
-
Step 950
950
#431516
oklch(27% 0.071 21.9)
#CF3740 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) | #635C3F | 0.205 |
| Deuteranopia (no green cones) | #897C3B | 0.187 |
| Tritanopia (no blue cones) | #E3003C | 0.047 |
| Achromatopsia (no color) | #717171 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CF3740
#CF3740
oklch(57% 0.188 22.5)
- #008890
#008890
oklch(57.1% 0.097 202.1)
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 #CF3740, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Red #D3494E ΔE 0.031
- Crimson #DC143C ΔE 0.035
- Dull Red #BB3F3F ΔE 0.038
- Cherry #CF0234 ΔE 0.041
- Lipstick #D5174E ΔE 0.042
- Dark Coral #CF524E ΔE 0.044
- Dusty Red #B9484E ΔE 0.045
- Imperial Red #E63946 ΔE 0.047
Use #CF3740 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.