#DF0304
Closest named color: Crimson (#DC143C). oklch(56.8% 0.232 29.1), rgb(223, 3, 4).
Aa
White text reads best on this color (5.05:1).
About this color
#DF0304 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.232 and its hue 29°. 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 5.05:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.232) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #DF0304 |
| RGB | rgb(223, 3, 4) |
| HSL | hsl(360, 97%, 44%) |
| OKLCH | oklch(56.8% 0.232 29.1) |
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 #DF0304 | 5.05:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #DF0304 | 4.15:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #DF0304 text on white | 5.05:1 | AA | Lc 72.0 | Content text, not long reading |
| #DF0304 text on black | 4.15:1 | AA large text | Lc -29.7 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FDCCC3
oklch(88.5% 0.057 30.3)
-
Step 300
300
#FDA79A
oklch(81% 0.104 29)
-
Step 400
400
#F77161
oklch(70.6% 0.168 28.9)
-
Step 500
500
#EF4032
oklch(63.1% 0.213 29.1)
-
Step 600
600 (this color)
#DF0304
oklch(56.8% 0.232 29.1)
-
Step 700
700
#B80002
oklch(49.2% 0.202 29)
-
Step 800
800
#980001
oklch(42.7% 0.175 29.1)
-
Step 900
900
#7B120D
oklch(37.7% 0.14 28.8)
-
Step 950
950
#490F0A
oklch(27.1% 0.088 29.1)
#DF0304 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) | #5E5200 | 0.255 |
| Deuteranopia (no green cones) | #8E7E00 | 0.226 |
| Tritanopia (no blue cones) | #F7000E | 0.049 |
| Achromatopsia (no color) | #6F6F6F | 0.234 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DF0304
#DF0304
oklch(56.8% 0.232 29.1)
- #008696
#008696
oklch(56.8% 0.098 209.4)
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 #DF0304, closest first.
No curated palette has a color within ΔE 0.04 of #DF0304.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.037
- Tomato Red #EC2D01 ΔE 0.043
- Cherry #CF0234 ΔE 0.046
- Red Pantone #EF233C ΔE 0.051
- Cherry Red #F7022A ΔE 0.053
- Imperial Red #E63946 ΔE 0.056
- Vermillion #F4320C ΔE 0.060
- Lipstick #D5174E ΔE 0.062
Use #DF0304 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.