#CF3333
Closest named color: Crimson (#DC143C). oklch(56.5% 0.193 25.9), rgb(207, 51, 51).
Aa
White text reads best on this color (5.03:1).
About this color
#CF3333 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.193 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.037 away. White text reads best on it, at 5.03:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.193) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #CF3333 |
| RGB | rgb(207, 51, 51) |
| HSL | hsl(0, 62%, 51%) |
| OKLCH | oklch(56.5% 0.193 25.9) |
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 #CF3333 | 5.03:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #CF3333 | 4.17:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #CF3333 text on white | 5.03:1 | AA | Lc 73.3 | Content text, not long reading |
| #CF3333 text on black | 4.17:1 | AA large text | Lc -28.4 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F8CEC9
oklch(88.6% 0.048 26)
-
Step 300
300
#F4ABA3
oklch(80.9% 0.087 26.1)
-
Step 400
400
#EA7B72
oklch(70.6% 0.139 26)
-
Step 500
500
#E1534D
oklch(63.1% 0.178 26)
-
Step 600
600 (this color)
#CF3333
oklch(56.5% 0.193 25.9)
-
Step 700
700
#B01F23
oklch(49.1% 0.18 25.9)
-
Step 800
800
#8F1E1F
oklch(42.7% 0.149 25.8)
-
Step 900
900
#73211E
oklch(37.8% 0.116 26.4)
-
Step 950
950
#441512
oklch(27.1% 0.073 26.7)
#CF3333 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) | #625931 | 0.209 |
| Deuteranopia (no green cones) | #897B2D | 0.190 |
| Tritanopia (no blue cones) | #E40035 | 0.047 |
| Achromatopsia (no color) | #6F6F6F | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CF3333
#CF3333
oklch(56.5% 0.193 25.9)
- #008592
#008592
oklch(56.4% 0.097 206.8)
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 #CF3333, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.037
- Cherry #CF0234 ΔE 0.039
- Dull Red #BB3F3F ΔE 0.039
- Faded Red #D3494E ΔE 0.040
- Lipstick #D5174E ΔE 0.049
- Dark Coral #CF524E ΔE 0.050
- Dusty Red #B9484E ΔE 0.051
- Imperial Red #E63946 ΔE 0.052
Use #CF3333 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.