#540004
Closest named color: Mahogany (#4A0100). oklch(28.1% 0.114 26.8), rgb(84, 0, 4).
Aa
White text reads best on this color (15.23:1).
About this color
#540004 is a dark, moderately saturated red. In OKLCH its lightness is 28%, its chroma 0.114 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.025 away. White text reads best on it, at 15.23:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.37:1 |
| White text | 15.23:1 |
Values
| HEX | #540004 |
| RGB | rgb(84, 0, 4) |
| HSL | hsl(357, 100%, 16%) |
| OKLCH | oklch(28.1% 0.114 26.8) |
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 #540004 | 15.23:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #540004 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #540004 text on white | 15.23:1 | AAA | Lc 100.6 | Preferred for body text |
| #540004 text on black | 1.37:1 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DE
oklch(93.5% 0.033 27.1)
-
Step 200
200
#FFCBC4
oklch(88.6% 0.06 27.2)
-
Step 300
300
#FFA59B
oklch(80.9% 0.108 26.6)
-
Step 400
400
#FF695F
oklch(70.7% 0.185 26.7)
-
Step 500
500
#FF0A21
oklch(63.1% 0.254 26.9)
-
Step 600
600
#D90019
oklch(55.7% 0.227 26.8)
-
Step 700
700
#B70013
oklch(49% 0.2 26.8)
-
Step 800
800
#98000E
oklch(42.8% 0.174 26.8)
-
Step 900
900
#80000A
oklch(37.7% 0.154 26.7)
-
Step 950
950 (this color)
#540004
oklch(28.1% 0.114 26.8)
#540004 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) | #1E1A03 | 0.127 |
| Deuteranopia (no green cones) | #322C00 | 0.115 |
| Tritanopia (no blue cones) | #5E0003 | 0.024 |
| Achromatopsia (no color) | #252525 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #540004
#540004
oklch(28.1% 0.114 26.8)
- #002F35
#002F35
oklch(27.9% 0.048 208.1)
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 #540004, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.025
- Deep Brown #410200 ΔE 0.047
- Burgundy #610023 ΔE 0.051
- Claret #680018 ΔE 0.053
- Chocolate Brown #411900 ΔE 0.056
- Dark Maroon #3C0008 ΔE 0.061
- Reddy Brown #6E1005 ΔE 0.070
- Dark Brown #341C02 ΔE 0.083
Use #540004 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.