#DD1800
Closest named color: Tomato Red (#EC2D01). oklch(57% 0.225 30.5), rgb(221, 24, 0).
Aa
White text reads best on this color (4.99:1).
About this color
#DD1800 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.225 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.039 away. White text reads best on it, at 4.99:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.225) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.20:1 |
| White text | 4.99:1 |
Values
| HEX | #DD1800 |
| RGB | rgb(221, 24, 0) |
| HSL | hsl(7, 100%, 43%) |
| OKLCH | oklch(57% 0.225 30.5) |
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 #DD1800 | 4.99:1 | AA | Lc -77.6 | Fine for body text |
| Black text on #DD1800 | 4.20:1 | AA large text | Lc 31.9 | Non-text elements, placeholder text |
| #DD1800 text on white | 4.99:1 | AA | Lc 72.2 | Content text, not long reading |
| #DD1800 text on black | 4.20:1 | AA large text | Lc -29.5 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FCCCC3
oklch(88.5% 0.056 30.5)
-
Step 300
300
#FBA899
oklch(80.9% 0.101 30.7)
-
Step 400
400
#F57460
oklch(70.8% 0.163 30.6)
-
Step 500
500
#EC4531
oklch(63.1% 0.207 30.4)
-
Step 600
600 (this color)
#DD1800
oklch(57% 0.225 30.5)
-
Step 700
700
#B51200
oklch(49.1% 0.194 30.6)
-
Step 800
800
#960C00
oklch(42.7% 0.169 30.4)
-
Step 900
900
#79160B
oklch(37.6% 0.135 30.5)
-
Step 950
950
#481009
oklch(27.1% 0.086 30.5)
#DD1800 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) | #615500 | 0.244 |
| Deuteranopia (no green cones) | #8F7E00 | 0.216 |
| Tritanopia (no blue cones) | #F40019 | 0.046 |
| Achromatopsia (no color) | #6F6F6F | 0.227 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DD1800
#DD1800
oklch(57% 0.225 30.5)
- #008798
#008798
oklch(57.1% 0.099 210.2)
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 #DD1800, closest first.
No curated palette has a color within ΔE 0.04 of #DD1800.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.039
- Crimson #DC143C ΔE 0.041
- Cherry #CF0234 ΔE 0.049
- Red Pantone #EF233C ΔE 0.053
- Imperial Red #E63946 ΔE 0.055
- Cherry Red #F7022A ΔE 0.056
- Vermillion #F4320C ΔE 0.057
- Deep Orange #DC4D01 ΔE 0.063
Use #DD1800 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.