#33181E
Closest named color: Dark Brown (#341C02). oklch(24.9% 0.044 6.5), rgb(51, 24, 30).
Aa
White text reads best on this color (16.27:1).
About this color
#33181E is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.044 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.048 away. White text reads best on it, at 16.27:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.29:1 |
| White text | 16.27:1 |
Values
| HEX | #33181E |
| RGB | rgb(51, 24, 30) |
| HSL | hsl(347, 36%, 15%) |
| OKLCH | oklch(24.9% 0.044 6.5) |
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 #33181E | 16.27:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #33181E | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #33181E text on white | 16.27:1 | AAA | Lc 103.1 | Preferred for body text |
| #33181E text on black | 1.29:1 | 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
#FAF4F5
oklch(97.2% 0.007 5.6)
-
Step 100
100
#F3E6E8
oklch(93.6% 0.014 6.7)
-
Step 200
200
#EBD2D6
oklch(88.6% 0.028 6.7)
-
Step 300
300
#DFB3BB
oklch(80.8% 0.052 6.1)
-
Step 400
400
#CE8B98
oklch(70.7% 0.083 6.7)
-
Step 500
500
#BF6D7F
oklch(63.1% 0.106 6.4)
-
Step 600
600
#AA5368
oklch(55.5% 0.116 6.3)
-
Step 700
700
#924457
oklch(49.2% 0.107 6.5)
-
Step 800
800
#773847
oklch(42.8% 0.089 6.6)
-
Step 900
900
#60313B
oklch(37.7% 0.069 7.3)
-
Step 950
950 (this color)
#33181E
oklch(24.9% 0.044 6.5)
#33181E 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) | #1D1D1E | 0.047 |
| Deuteranopia (no green cones) | #23221D | 0.045 |
| Tritanopia (no blue cones) | #37161A | 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°).
- #33181E
#33181E
oklch(24.9% 0.044 6.5)
- #002825
#002825
oklch(24.9% 0.043 187.3)
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 #33181E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.048
- Jet #212529 ΔE 0.051
- Chocolate Brown #411900 ΔE 0.054
- Dark Maroon #3C0008 ΔE 0.055
- Deep Brown #410200 ΔE 0.058
- Dark #1B2431 ΔE 0.060
- Dark Plum #3F012C ΔE 0.065
- Eggplant #380835 ΔE 0.065
Use #33181E 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.