#540A03
Closest named color: Mahogany (#4A0100). oklch(28.9% 0.107 30.9), rgb(84, 10, 3).
Aa
White text reads best on this color (14.77:1).
About this color
#540A03 is a dark, moderately saturated red. In OKLCH its lightness is 29%, its chroma 0.107 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.031 away. White text reads best on it, at 14.77:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.107) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.42:1 |
| White text | 14.77:1 |
Values
| HEX | #540A03 |
| RGB | rgb(84, 10, 3) |
| HSL | hsl(5, 93%, 17%) |
| OKLCH | oklch(28.9% 0.107 30.9) |
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 #540A03 | 14.77:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #540A03 | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #540A03 text on white | 14.77:1 | AAA | Lc 100.5 | Preferred for body text |
| #540A03 text on black | 1.42:1 | 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
#FFE2DD
oklch(93.5% 0.033 29.4)
-
Step 200
200
#FFCBC1
oklch(88.5% 0.061 30.9)
-
Step 300
300
#FFA696
oklch(80.9% 0.109 30.7)
-
Step 400
400
#FF6A54
oklch(70.7% 0.186 30.7)
-
Step 500
500
#FC2200
oklch(63.2% 0.247 30.9)
-
Step 600
600
#D51B00
oklch(55.6% 0.217 30.9)
-
Step 700
700
#B41500
oklch(49.1% 0.192 30.9)
-
Step 800
800
#951000
oklch(42.7% 0.167 31)
-
Step 900
900
#7E0B00
oklch(37.8% 0.148 30.9)
-
Step 950
950 (this color)
#540A03
oklch(28.9% 0.107 30.9)
#540A03 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) | #231D02 | 0.113 |
| Deuteranopia (no green cones) | #352E00 | 0.103 |
| Tritanopia (no blue cones) | #5E0009 | 0.025 |
| Achromatopsia (no color) | #282828 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #540A03
#540A03
oklch(28.9% 0.107 30.9)
- #003139
#003139
oklch(28.7% 0.05 211.9)
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 #540A03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.031
- Chocolate Brown #411900 ΔE 0.048
- Deep Brown #410200 ΔE 0.052
- Claret #680018 ΔE 0.052
- Burgundy #610023 ΔE 0.054
- Reddy Brown #6E1005 ΔE 0.064
- Dark Maroon #3C0008 ΔE 0.068
- Dark Brown #341C02 ΔE 0.077
Use #540A03 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.