#33181F
Closest named color: Dark Brown (#341C02). oklch(25% 0.044 4.2), rgb(51, 24, 31).
Aa
White text reads best on this color (16.26:1).
About this color
#33181F is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.044 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.050 away. White text reads best on it, at 16.26:1.
| 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 | 16.26:1 |
Values
| HEX | #33181F |
| RGB | rgb(51, 24, 31) |
| HSL | hsl(344, 36%, 15%) |
| OKLCH | oklch(25% 0.044 4.2) |
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 #33181F | 16.26:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #33181F | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #33181F text on white | 16.26:1 | AAA | Lc 103.1 | Preferred for body text |
| #33181F 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
#EBD2D7
oklch(88.6% 0.029 4)
-
Step 300
300
#DFB3BC
oklch(80.8% 0.052 4.6)
-
Step 400
400
#CE8B9A
oklch(70.8% 0.084 4.8)
-
Step 500
500
#BF6D82
oklch(63.2% 0.106 4.1)
-
Step 600
600
#AA536B
oklch(55.6% 0.116 4.1)
-
Step 700
700
#924359
oklch(49.1% 0.109 4.4)
-
Step 800
800
#763849
oklch(42.7% 0.089 4.2)
-
Step 900
900
#60313D
oklch(37.8% 0.069 4.6)
-
Step 950
950 (this color)
#33181F
oklch(25% 0.044 4.2)
#33181F 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) | #1C1D1F | 0.049 |
| Deuteranopia (no green cones) | #23221E | 0.045 |
| Tritanopia (no blue cones) | #37161A | 0.012 |
| Achromatopsia (no color) | #202020 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33181F
#33181F
oklch(25% 0.044 4.2)
- #002824
#002824
oklch(24.9% 0.044 184.8)
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 #33181F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.050
- Jet #212529 ΔE 0.051
- Chocolate Brown #411900 ΔE 0.055
- Dark Maroon #3C0008 ΔE 0.055
- Dark #1B2431 ΔE 0.059
- Deep Brown #410200 ΔE 0.059
- Eggplant #380835 ΔE 0.063
- Dark Plum #3F012C ΔE 0.063
Use #33181F 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.