#851722
Closest named color: Dark Red (#8B0000). oklch(40.3% 0.144 22), rgb(133, 23, 34).
Aa
White text reads best on this color (9.79:1).
About this color
#851722 is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.144 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.028 away. White text reads best on it, at 9.79:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.14:1 |
| White text | 9.79:1 |
Values
| HEX | #851722 |
| RGB | rgb(133, 23, 34) |
| HSL | hsl(354, 71%, 31%) |
| OKLCH | oklch(40.3% 0.144 22) |
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 #851722 | 9.79:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #851722 | 2.14:1 | Fails | Lc 12.7 | Not readable |
| #851722 text on white | 9.79:1 | AAA | Lc 91.3 | Preferred for body text |
| #851722 text on black | 2.14:1 | Fails | Lc -11.1 | 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
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F7CECB
oklch(88.6% 0.047 23)
-
Step 300
300
#F2ABA8
oklch(80.8% 0.084 21.8)
-
Step 400
400
#E87C7A
oklch(70.7% 0.134 22.1)
-
Step 500
500
#DE5558
oklch(63.1% 0.172 22.2)
-
Step 600
600
#C9333E
oklch(55.6% 0.186 22)
-
Step 700
700
#AE2330
oklch(49.2% 0.174 22.1)
-
Step 800
800 (this color)
#851722
oklch(40.3% 0.144 22)
-
Step 900
900
#712225
oklch(37.7% 0.111 22.1)
-
Step 950
950
#431516
oklch(27% 0.071 21.9)
#851722 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) | #393521 | 0.159 |
| Deuteranopia (no green cones) | #554C1E | 0.144 |
| Tritanopia (no blue cones) | #93001C | 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°).
- #851722
#851722
oklch(40.3% 0.144 22)
- #005358
#005358
oklch(40.3% 0.068 201.8)
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 #851722, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.028
- Brick Red #8F1402 ΔE 0.032
- Maroon #800000 ΔE 0.034
- Wine Red #7B0323 ΔE 0.034
- Red Wine #8C0034 ΔE 0.036
- Bordeaux #7B002C ΔE 0.042
- Blood Red #980002 ΔE 0.044
- Red Brown #8B2E16 ΔE 0.048
Use #851722 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.