#731017
Closest named color: Blood (#770001). oklch(36% 0.132 24), rgb(115, 16, 23).
Aa
White text reads best on this color (11.56:1).
About this color
#731017 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.132 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Blood (#770001), ΔE 0.019 away. White text reads best on it, at 11.56:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Blood (#770001) |
| Black text | 1.81:1 |
| White text | 11.56:1 |
Values
| HEX | #731017 |
| RGB | rgb(115, 16, 23) |
| HSL | hsl(356, 76%, 26%) |
| OKLCH | oklch(36% 0.132 24) |
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 #731017 | 11.56:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #731017 | 1.81:1 | Fails | Lc 8.8 | Not readable |
| #731017 text on white | 11.56:1 | AAA | Lc 95.1 | Preferred for body text |
| #731017 text on black | 1.81:1 | Fails | Lc -7.5 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FCCCC8
oklch(88.6% 0.055 23.8)
-
Step 300
300
#FAA7A1
oklch(80.8% 0.099 24)
-
Step 400
400
#F3746F
oklch(70.7% 0.157 24.2)
-
Step 500
500
#EB4548
oklch(63.2% 0.203 24.2)
-
Step 600
600
#D60F2A
oklch(55.6% 0.22 24.1)
-
Step 700
700
#B70020
oklch(49.1% 0.199 24)
-
Step 800
800
#96061A
oklch(42.7% 0.169 24.1)
-
Step 900
900 (this color)
#731017
oklch(36% 0.132 24)
-
Step 950
950
#471011
oklch(27% 0.084 23.8)
#731017 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) | #302B16 | 0.145 |
| Deuteranopia (no green cones) | #484013 | 0.131 |
| Tritanopia (no blue cones) | #7F0014 | 0.026 |
| Achromatopsia (no color) | #393939 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731017
#731017
oklch(36% 0.132 24)
- #00464C
#00464C
oklch(36% 0.061 204.6)
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 #731017, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blood #770001 ΔE 0.019
- Reddy Brown #6E1005 ΔE 0.020
- Wine Red #7B0323 ΔE 0.026
- Maroon #800000 ΔE 0.031
- Claret #680018 ΔE 0.035
- Bordeaux #7B002C ΔE 0.038
- Chestnut #742802 ΔE 0.048
- Dark Red #8B0000 ΔE 0.053
Use #731017 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.