#DF0017
Closest named color: Crimson (#DC143C). oklch(56.8% 0.232 27.2), rgb(223, 0, 23).
Aa
White text reads best on this color (5.06:1).
About this color
#DF0017 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.232 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.030 away. White text reads best on it, at 5.06:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.232) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.14:1 |
| White text | 5.06:1 |
Values
| HEX | #DF0017 |
| RGB | rgb(223, 0, 23) |
| HSL | hsl(354, 100%, 44%) |
| OKLCH | oklch(56.8% 0.232 27.2) |
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 #DF0017 | 5.06:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #DF0017 | 4.14:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #DF0017 text on white | 5.06:1 | AA | Lc 72.0 | Content text, not long reading |
| #DF0017 text on black | 4.14:1 | 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
#FEE3DF
oklch(93.7% 0.03 27.8)
-
Step 200
200
#FDCBC5
oklch(88.4% 0.058 26.2)
-
Step 300
300
#FDA69C
oklch(80.8% 0.105 26.8)
-
Step 400
400
#F77165
oklch(70.7% 0.167 27.3)
-
Step 500
500
#EF3F3A
oklch(63.1% 0.213 27)
-
Step 600
600 (this color)
#DF0017
oklch(56.8% 0.232 27.2)
-
Step 700
700
#B70011
oklch(49% 0.2 27.1)
-
Step 800
800
#98000C
oklch(42.7% 0.174 27.2)
-
Step 900
900
#7B1212
oklch(37.7% 0.139 27.1)
-
Step 950
950
#490E0C
oklch(27.1% 0.089 27)
#DF0017 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) | #5D5212 | 0.257 |
| Deuteranopia (no green cones) | #8E7E00 | 0.230 |
| Tritanopia (no blue cones) | #F60012 | 0.047 |
| Achromatopsia (no color) | #6F6F6F | 0.233 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DF0017
#DF0017
oklch(56.8% 0.232 27.2)
- #008794
#008794
oklch(57% 0.098 206.7)
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 #DF0017, closest first.
No curated palette has a color within ΔE 0.04 of #DF0017.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.030
- Cherry #CF0234 ΔE 0.041
- Tomato Red #EC2D01 ΔE 0.046
- Red Pantone #EF233C ΔE 0.048
- Cherry Red #F7022A ΔE 0.051
- Imperial Red #E63946 ΔE 0.053
- Lipstick #D5174E ΔE 0.055
- Vermillion #F4320C ΔE 0.062
Use #DF0017 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.