#33181D
Closest named color: Dark Brown (#341C02). oklch(24.9% 0.044 8.9), rgb(51, 24, 29).
Aa
White text reads best on this color (16.28:1).
About this color
#33181D is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.044 and its hue 9°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.047 away. White text reads best on it, at 16.28:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.28:1 |
| White text | 16.28:1 |
Values
| HEX | #33181D |
| RGB | rgb(51, 24, 29) |
| HSL | hsl(349, 36%, 15%) |
| OKLCH | oklch(24.9% 0.044 8.9) |
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 #33181D | 16.28:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #33181D | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #33181D text on white | 16.28:1 | AAA | Lc 103.1 | Preferred for body text |
| #33181D text on black | 1.28:1 | 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
#FAF4F4
oklch(97.2% 0.006 17.3)
-
Step 100
100
#F4E6E8
oklch(93.7% 0.015 7.5)
-
Step 200
200
#EBD2D5
oklch(88.5% 0.028 9.4)
-
Step 300
300
#DFB3BA
oklch(80.8% 0.052 7.6)
-
Step 400
400
#CE8B96
oklch(70.7% 0.083 8.6)
-
Step 500
500
#C06D7C
oklch(63.1% 0.106 9)
-
Step 600
600
#AB5465
oklch(55.7% 0.115 9.2)
-
Step 700
700
#924454
oklch(49.1% 0.106 8.9)
-
Step 800
800
#773845
oklch(42.7% 0.089 8.6)
-
Step 900
900
#60313A
oklch(37.7% 0.069 8.7)
-
Step 950
950 (this color)
#33181D
oklch(24.9% 0.044 8.9)
#33181D 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) | #1D1D1D | 0.047 |
| Deuteranopia (no green cones) | #23221C | 0.045 |
| Tritanopia (no blue cones) | #37151A | 0.011 |
| Achromatopsia (no color) | #202020 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33181D
#33181D
oklch(24.9% 0.044 8.9)
- #002826
#002826
oklch(25% 0.043 189.7)
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 #33181D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.047
- Jet #212529 ΔE 0.051
- Chocolate Brown #411900 ΔE 0.052
- Dark Maroon #3C0008 ΔE 0.054
- Deep Brown #410200 ΔE 0.057
- Dark #1B2431 ΔE 0.060
- Dark Plum #3F012C ΔE 0.066
- Mahogany #4A0100 ΔE 0.066
Use #33181D 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.