#851B4A
Closest named color: Red Purple (#820747). oklch(41.6% 0.145 359.2), rgb(133, 27, 74).
Aa
White text reads best on this color (9.32:1).
About this color
#851B4A is a dark, vivid red. In OKLCH its lightness is 42%, its chroma 0.145 and its hue 359°. Its hue sits on the warm side of the wheel. The nearest named color is Red Purple (#820747), ΔE 0.022 away. White text reads best on it, at 9.32:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | vivid (0.145) |
| Temperature | warm |
| Nearest name | Red Purple (#820747) |
| Black text | 2.25:1 |
| White text | 9.32:1 |
Values
| HEX | #851B4A |
| RGB | rgb(133, 27, 74) |
| HSL | hsl(333, 66%, 31%) |
| OKLCH | oklch(41.6% 0.145 359.2) |
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 #851B4A | 9.32:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #851B4A | 2.25:1 | Fails | Lc 13.7 | Not readable |
| #851B4A text on white | 9.32:1 | AAA | Lc 90.3 | Preferred for body text |
| #851B4A text on black | 2.25:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#FCF2F5
oklch(97% 0.011 357)
-
Step 100
100
#F9E3E9
oklch(93.5% 0.025 359.2)
-
Step 200
200
#F5CDD8
oklch(88.6% 0.047 359.7)
-
Step 300
300
#EFAABF
oklch(80.9% 0.085 359.3)
-
Step 400
400
#E37A9E
oklch(70.7% 0.135 359.3)
-
Step 500
500
#D85387
oklch(63.1% 0.173 359)
-
Step 600
600
#C33170
oklch(55.6% 0.188 359.3)
-
Step 700
700
#A8215E
oklch(49.1% 0.176 359.2)
-
Step 800
800 (this color)
#851B4A
oklch(41.6% 0.145 359.2)
-
Step 900
900
#6E2140
oklch(37.7% 0.113 359.3)
-
Step 950
950
#411425
oklch(26.9% 0.073 359.7)
#851B4A 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) | #333A4B | 0.164 |
| Deuteranopia (no green cones) | #504E48 | 0.146 |
| Tritanopia (no blue cones) | #910630 | 0.045 |
| Achromatopsia (no color) | #474747 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #851B4A
#851B4A
oklch(41.6% 0.145 359.2)
- #00594D
#00594D
oklch(41.6% 0.076 179.5)
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 #851B4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Purple #820747 ΔE 0.022
- Mulberry #920A4E ΔE 0.029
- Wine #80013F ΔE 0.031
- Red Wine #8C0034 ΔE 0.037
- Berry #990F4B ΔE 0.041
- Purple Red #990147 ΔE 0.042
- Velvet #750851 ΔE 0.051
- Bordeaux #7B002C ΔE 0.054
Use #851B4A 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.