#851223
Closest named color: Dark Red (#8B0000). oklch(40% 0.147 20.5), rgb(133, 18, 35).
Aa
White text reads best on this color (9.96:1).
About this color
#851223 is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.147 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.029 away. White text reads best on it, at 9.96:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.10:1 |
| White text | 9.96:1 |
Values
| HEX | #851223 |
| RGB | rgb(133, 18, 35) |
| HSL | hsl(351, 76%, 30%) |
| OKLCH | oklch(40% 0.147 20.5) |
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 #851223 | 9.96:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #851223 | 2.10:1 | Fails | Lc 12.5 | Not readable |
| #851223 text on white | 9.96:1 | AAA | Lc 91.5 | Preferred for body text |
| #851223 text on black | 2.10:1 | Fails | Lc -10.9 | 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
#FFE2E1
oklch(93.6% 0.032 20.1)
-
Step 200
200
#FFCAC8
oklch(88.5% 0.061 20.9)
-
Step 300
300
#FFA4A3
oklch(80.9% 0.108 20.4)
-
Step 400
400
#FB6B70
oklch(70.7% 0.176 20.7)
-
Step 500
500
#F4324B
oklch(63.2% 0.226 20.5)
-
Step 600
600
#D70036
oklch(55.6% 0.223 20.4)
-
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)
#851223
oklch(40% 0.147 20.5)
-
Step 950
950
#4A0A12
oklch(27% 0.093 20)
#851223 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) | #373323 | 0.163 |
| Deuteranopia (no green cones) | #534B1F | 0.149 |
| Tritanopia (no blue cones) | #93001A | 0.030 |
| Achromatopsia (no color) | #434343 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #851223
#851223
oklch(40% 0.147 20.5)
- #005256
#005256
oklch(39.9% 0.068 200.5)
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 #851223, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.029
- Wine Red #7B0323 ΔE 0.030
- Red Wine #8C0034 ΔE 0.032
- Maroon #800000 ΔE 0.033
- Brick Red #8F1402 ΔE 0.036
- Bordeaux #7B002C ΔE 0.037
- Blood Red #980002 ΔE 0.046
- Blood #770001 ΔE 0.047
Use #851223 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.