#DC1901
Closest named color: Crimson (#DC143C). oklch(56.9% 0.224 30.5), rgb(220, 25, 1).
Aa
White text reads best on this color (5.02:1).
About this color
#DC1901 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.224 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.041 away. White text reads best on it, at 5.02:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.224) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.18:1 |
| White text | 5.02:1 |
Values
| HEX | #DC1901 |
| RGB | rgb(220, 25, 1) |
| HSL | hsl(7, 99%, 43%) |
| OKLCH | oklch(56.9% 0.224 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 #DC1901 | 5.02:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #DC1901 | 4.18:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #DC1901 text on white | 5.02:1 | AA | Lc 72.4 | Content text, not long reading |
| #DC1901 text on black | 4.18:1 | AA large text | Lc -29.3 | 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
#F47461
oklch(70.6% 0.161 30.2)
-
Step 500
500
#EC4631
oklch(63.2% 0.206 30.7)
-
Step 600
600 (this color)
#DC1901
oklch(56.9% 0.224 30.5)
-
Step 700
700
#B51200
oklch(49.1% 0.194 30.6)
-
Step 800
800
#960D00
oklch(42.8% 0.169 30.6)
-
Step 900
900
#79170C
oklch(37.7% 0.134 30.5)
-
Step 950
950
#471009
oklch(26.8% 0.085 30.6)
#DC1901 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) | #615400 | 0.242 |
| Deuteranopia (no green cones) | #8E7E00 | 0.216 |
| Tritanopia (no blue cones) | #F3001A | 0.046 |
| Achromatopsia (no color) | #6F6F6F | 0.226 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DC1901
#DC1901
oklch(56.9% 0.224 30.5)
- #008697
#008697
oklch(56.8% 0.098 210.3)
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 #DC1901, closest first.
No curated palette has a color within ΔE 0.04 of #DC1901.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.041
- Tomato Red #EC2D01 ΔE 0.041
- Cherry #CF0234 ΔE 0.048
- Red Pantone #EF233C ΔE 0.054
- Imperial Red #E63946 ΔE 0.056
- Cherry Red #F7022A ΔE 0.058
- Vermillion #F4320C ΔE 0.059
- Deep Orange #DC4D01 ΔE 0.064
Use #DC1901 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.