#DC303F
Closest named color: Crimson (#DC143C). oklch(58.7% 0.206 22.3), rgb(220, 48, 63).
Aa
White text reads best on this color (4.62:1).
About this color
#DC303F is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.206 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.024 away. White text reads best on it, at 4.62:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.206) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.53:1 |
| White text | 4.62:1 |
Values
| HEX | #DC303F |
| RGB | rgb(220, 48, 63) |
| HSL | hsl(355, 71%, 53%) |
| OKLCH | oklch(58.7% 0.206 22.3) |
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 #DC303F | 4.62:1 | AA | Lc -76.0 | Fine for body text |
| Black text on #DC303F | 4.53:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #DC303F text on white | 4.62:1 | AA | Lc 70.5 | Content text, not long reading |
| #DC303F text on black | 4.53:1 | AA | Lc -31.2 | Non-text elements, placeholder text |
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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FACCCA
oklch(88.4% 0.052 21.1)
-
Step 300
300
#F7A9A5
oklch(80.9% 0.093 22.6)
-
Step 400
400
#EF7775
oklch(70.7% 0.149 22.5)
-
Step 500
500
#E54C52
oklch(63.1% 0.189 22.2)
-
Step 600
600 (this color)
#DC303F
oklch(58.7% 0.206 22.3)
-
Step 700
700
#B40E29
oklch(49.1% 0.191 22.2)
-
Step 800
800
#921423
oklch(42.6% 0.158 22.2)
-
Step 900
900
#761C21
oklch(37.8% 0.124 22.6)
-
Step 950
950
#451214
oklch(26.9% 0.078 21.9)
#DC303F 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) | #655D3E | 0.226 |
| Deuteranopia (no green cones) | #908239 | 0.206 |
| Tritanopia (no blue cones) | #F20038 | 0.043 |
| Achromatopsia (no color) | #757575 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DC303F
#DC303F
oklch(58.7% 0.206 22.3)
- #008D96
#008D96
oklch(58.6% 0.1 202.7)
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 #DC303F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.024
- Imperial Red #E63946 ΔE 0.026
- Faded Red #D3494E ΔE 0.034
- Red Pantone #EF233C ΔE 0.036
- Lipstick #D5174E ΔE 0.041
- Cherry #CF0234 ΔE 0.048
- Tomato Red #EC2D01 ΔE 0.049
- Dark Coral #CF524E ΔE 0.050
Use #DC303F 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.