#851729
Closest named color: Red Wine (#8C0034). oklch(40.4% 0.143 18.4), rgb(133, 23, 41).
Aa
White text reads best on this color (9.75:1).
About this color
#851729 is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.143 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Red Wine (#8C0034), ΔE 0.029 away. White text reads best on it, at 9.75:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Red Wine (#8C0034) |
| Black text | 2.15:1 |
| White text | 9.75:1 |
Values
| HEX | #851729 |
| RGB | rgb(133, 23, 41) |
| HSL | hsl(350, 71%, 31%) |
| OKLCH | oklch(40.4% 0.143 18.4) |
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 #851729 | 9.75:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #851729 | 2.15:1 | Fails | Lc 12.8 | Not readable |
| #851729 text on white | 9.75:1 | AAA | Lc 91.2 | Preferred for body text |
| #851729 text on black | 2.15:1 | Fails | Lc -11.2 | 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 800.
-
Step 50
50
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F7CDCD
oklch(88.4% 0.048 18.1)
-
Step 300
300
#F2ABAC
oklch(80.9% 0.084 18.1)
-
Step 400
400
#E87B80
oklch(70.7% 0.135 18.2)
-
Step 500
500
#DE5460
oklch(63.1% 0.172 18.4)
-
Step 600
600
#C93247
oklch(55.6% 0.186 18.4)
-
Step 700
700
#AD2238
oklch(49.1% 0.173 18.6)
-
Step 800
800 (this color)
#851729
oklch(40.4% 0.143 18.4)
-
Step 900
900
#71212A
oklch(37.6% 0.112 18)
-
Step 950
950
#431519
oklch(27.1% 0.071 18)
#851729 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) | #383529 | 0.160 |
| Deuteranopia (no green cones) | #544C26 | 0.145 |
| Tritanopia (no blue cones) | #93001F | 0.030 |
| Achromatopsia (no color) | #444444 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #851729
#851729
oklch(40.4% 0.143 18.4)
- #005456
#005456
oklch(40.5% 0.069 197.6)
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 #851729, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Wine #8C0034 ΔE 0.029
- Wine Red #7B0323 ΔE 0.033
- Dark Red #8B0000 ΔE 0.036
- Bordeaux #7B002C ΔE 0.037
- Brick Red #8F1402 ΔE 0.040
- Maroon #800000 ΔE 0.041
- Blood Red #980002 ΔE 0.048
- Wine #80013F ΔE 0.049
Use #851729 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.