#730018
Closest named color: Blood (#770001). oklch(35.1% 0.141 20.6), rgb(115, 0, 24).
Aa
White text reads best on this color (12.05:1).
About this color
#730018 is a dark, vivid red. In OKLCH its lightness is 35%, its chroma 0.141 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Blood (#770001), ΔE 0.023 away. White text reads best on it, at 12.05:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Blood (#770001) |
| Black text | 1.74:1 |
| White text | 12.05:1 |
Values
| HEX | #730018 |
| RGB | rgb(115, 0, 24) |
| HSL | hsl(347, 100%, 23%) |
| OKLCH | oklch(35.1% 0.141 20.6) |
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 #730018 | 12.05:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #730018 | 1.74:1 | Fails | Lc 8.5 | Not readable |
| #730018 text on white | 12.05:1 | AAA | Lc 95.4 | Preferred for body text |
| #730018 text on black | 1.74:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE2E1
oklch(93.5% 0.031 20.2)
-
Step 200
200
#FECAC9
oklch(88.4% 0.059 19.6)
-
Step 300
300
#FEA5A4
oklch(81% 0.106 20.3)
-
Step 400
400
#F86E72
oklch(70.7% 0.17 20.7)
-
Step 500
500
#F03A4E
oklch(63.1% 0.216 20.5)
-
Step 600
600
#D70035
oklch(55.6% 0.223 20.7)
-
Step 700
700
#B6002C
oklch(49.1% 0.197 20.5)
-
Step 800
800
#970023
oklch(42.8% 0.172 20.4)
-
Step 900
900 (this color)
#730018
oklch(35.1% 0.141 20.6)
-
Step 950
950
#490D13
oklch(27.1% 0.089 20.3)
#730018 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) | #2B2718 | 0.158 |
| Deuteranopia (no green cones) | #463E14 | 0.142 |
| Tritanopia (no blue cones) | #7F000C | 0.030 |
| Achromatopsia (no color) | #363636 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #730018
#730018
oklch(35.1% 0.141 20.6)
- #004447
#004447
oklch(35.1% 0.06 199.8)
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 #730018, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blood #770001 ΔE 0.023
- Wine Red #7B0323 ΔE 0.023
- Claret #680018 ΔE 0.026
- Reddy Brown #6E1005 ΔE 0.027
- Bordeaux #7B002C ΔE 0.032
- Maroon #800000 ΔE 0.036
- Burgundy #610023 ΔE 0.047
- Merlot #730039 ΔE 0.051
Use #730018 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.