#521921
Closest named color: Burgundy (#610023). oklch(30.7% 0.085 15.4), rgb(82, 25, 33).
Aa
White text reads best on this color (13.81:1).
About this color
#521921 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.085 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.043 away. White text reads best on it, at 13.81:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.51:1 |
| White text | 13.81:1 |
Values
| HEX | #521921 |
| RGB | rgb(82, 25, 33) |
| HSL | hsl(352, 53%, 21%) |
| OKLCH | oklch(30.7% 0.085 15.4) |
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 #521921 | 13.81:1 | AAA | Lc -103.0 | Preferred for body text |
| Black text on #521921 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #521921 text on white | 13.81:1 | AAA | Lc 99.8 | Preferred for body text |
| #521921 text on black | 1.51:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FDE2E3
oklch(93.5% 0.03 15.1)
-
Step 200
200
#FCCBCD
oklch(88.5% 0.056 15.5)
-
Step 300
300
#FBA6AB
oklch(81% 0.101 15.7)
-
Step 400
400
#F4717F
oklch(70.8% 0.161 15.6)
-
Step 500
500
#EB405F
oklch(63.1% 0.206 15.4)
-
Step 600
600
#D60046
oklch(55.7% 0.223 15.4)
-
Step 700
700
#B5003A
oklch(49.1% 0.196 15.4)
-
Step 800
800
#96002E
oklch(42.8% 0.171 15.6)
-
Step 900
900
#791329
oklch(37.8% 0.135 15.4)
-
Step 950
950 (this color)
#521921
oklch(30.7% 0.085 15.4)
#521921 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) | #272521 | 0.092 |
| Deuteranopia (no green cones) | #353120 | 0.086 |
| Tritanopia (no blue cones) | #5A0F1C | 0.021 |
| Achromatopsia (no color) | #2D2D2D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #521921
#521921
oklch(30.7% 0.085 15.4)
- #003838
#003838
oklch(30.8% 0.053 194.8)
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 #521921, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.043
- Claret #680018 ΔE 0.051
- Mahogany #4A0100 ΔE 0.058
- Chocolate Brown #411900 ΔE 0.060
- Reddy Brown #6E1005 ΔE 0.067
- Deep Brown #410200 ΔE 0.073
- Dark Plum #3F012C ΔE 0.080
- Dark Maroon #3C0008 ΔE 0.082
Use #521921 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.