#451021
Closest named color: Dark Plum (#3F012C). oklch(27% 0.082 5), rgb(69, 16, 33).
Aa
White text reads best on this color (15.56:1).
About this color
#451021 is a dark, moderately saturated red. In OKLCH its lightness is 27%, its chroma 0.082 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.045 away. White text reads best on it, at 15.56:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.34:1 |
| White text | 15.56:1 |
Values
| HEX | #451021 |
| RGB | rgb(69, 16, 33) |
| HSL | hsl(341, 62%, 17%) |
| OKLCH | oklch(27% 0.082 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 #451021 | 15.56:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #451021 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #451021 text on white | 15.56:1 | AAA | Lc 101.9 | Preferred for body text |
| #451021 text on black | 1.34:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FCE3E7
oklch(93.7% 0.028 6.7)
-
Step 200
200
#FACBD4
oklch(88.5% 0.054 5.4)
-
Step 300
300
#F7A6B8
oklch(80.9% 0.098 4.9)
-
Step 400
400
#EE7294
oklch(70.7% 0.156 4.6)
-
Step 500
500
#E44579
oklch(63.1% 0.198 5.1)
-
Step 600
600
#D01262
oklch(55.6% 0.216 5.1)
-
Step 700
700
#B20052
oklch(49.1% 0.197 4.8)
-
Step 800
800
#920943
oklch(42.8% 0.167 5)
-
Step 900
900
#751738
oklch(37.7% 0.129 5.2)
-
Step 950
950 (this color)
#451021
oklch(27% 0.082 5)
#451021 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) | #1C1D21 | 0.091 |
| Deuteranopia (no green cones) | #2A2820 | 0.084 |
| Tritanopia (no blue cones) | #4C0817 | 0.022 |
| Achromatopsia (no color) | #242424 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #451021
#451021
oklch(27% 0.082 5)
- #002E29
#002E29
oklch(27.1% 0.048 183.6)
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 #451021, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.045
- Mahogany #4A0100 ΔE 0.047
- Aubergine #3D0734 ΔE 0.051
- Dark Maroon #3C0008 ΔE 0.051
- Deep Brown #410200 ΔE 0.052
- Eggplant #380835 ΔE 0.059
- Chocolate Brown #411900 ΔE 0.059
- Burgundy #610023 ΔE 0.063
Use #451021 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.