#D9170E
Closest named color: Crimson (#DC143C). oklch(56.3% 0.222 29.3), rgb(217, 23, 14).
Aa
White text reads best on this color (5.14:1).
About this color
#D9170E is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.222 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 5.14:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.222) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.07:1 |
| White text | 5.14:1 |
Values
| HEX | #D9170E |
| RGB | rgb(217, 23, 14) |
| HSL | hsl(3, 88%, 45%) |
| OKLCH | oklch(56.3% 0.222 29.3) |
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 #D9170E | 5.14:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #D9170E | 4.07:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #D9170E text on white | 5.14:1 | AA | Lc 73.1 | Content text, not long reading |
| #D9170E text on black | 4.07:1 | AA large text | Lc -28.6 | 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
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC4
oklch(88.5% 0.056 29.2)
-
Step 300
300
#FAA89B
oklch(80.8% 0.099 29.3)
-
Step 400
400
#F47564
oklch(70.8% 0.159 29.4)
-
Step 500
500
#EB4637
oklch(63.1% 0.204 29.2)
-
Step 600
600 (this color)
#D9170E
oklch(56.3% 0.222 29.3)
-
Step 700
700
#B80200
oklch(49.2% 0.201 29.4)
-
Step 800
800
#960804
oklch(42.6% 0.17 29.3)
-
Step 900
900
#791710
oklch(37.7% 0.134 29.2)
-
Step 950
950
#47110B
oklch(27% 0.084 29.8)
#D9170E 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) | #5F5305 | 0.242 |
| Deuteranopia (no green cones) | #8C7C00 | 0.216 |
| Tritanopia (no blue cones) | #F0001A | 0.046 |
| Achromatopsia (no color) | #6D6D6D | 0.223 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D9170E
#D9170E
oklch(56.3% 0.222 29.3)
- #008494
#008494
oklch(56.2% 0.097 209.6)
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 #D9170E, closest first.
No curated palette has a color within ΔE 0.04 of #D9170E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.037
- Cherry #CF0234 ΔE 0.041
- Tomato Red #EC2D01 ΔE 0.048
- Red Pantone #EF233C ΔE 0.057
- Imperial Red #E63946 ΔE 0.058
- Lipstick #D5174E ΔE 0.060
- Scarlet #BE0119 ΔE 0.061
- Cherry Red #F7022A ΔE 0.062
Use #D9170E 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.