#490B18
Closest named color: Mahogany (#4A0100). oklch(27% 0.091 14.4), rgb(73, 11, 24).
Aa
White text reads best on this color (15.62:1).
About this color
#490B18 is a dark, moderately saturated red. In OKLCH its lightness is 27%, its chroma 0.091 and its hue 14°. 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 15.62:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.34:1 |
| White text | 15.62:1 |
Values
| HEX | #490B18 |
| RGB | rgb(73, 11, 24) |
| HSL | hsl(347, 74%, 16%) |
| OKLCH | oklch(27% 0.091 14.4) |
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 #490B18 | 15.62:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #490B18 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #490B18 text on white | 15.62:1 | AAA | Lc 101.8 | Preferred for body text |
| #490B18 text on black | 1.34:1 | 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
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FEE2E3
oklch(93.6% 0.031 15.3)
-
Step 200
200
#FECACD
oklch(88.5% 0.059 14.5)
-
Step 300
300
#FEA3AB
oklch(80.8% 0.108 14)
-
Step 400
400
#F96B7F
oklch(70.7% 0.174 14.1)
-
Step 500
500
#F1345E
oklch(63.2% 0.222 14.5)
-
Step 600
600
#D50049
oklch(55.5% 0.222 14.3)
-
Step 700
700
#B5003C
oklch(49.2% 0.197 14.6)
-
Step 800
800
#950030
oklch(42.6% 0.17 14.5)
-
Step 900
900
#7C0929
oklch(37.8% 0.144 14.3)
-
Step 950
950 (this color)
#490B18
oklch(27% 0.091 14.4)
#490B18 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) | #1C1B18 | 0.102 |
| Deuteranopia (no green cones) | #2C2816 | 0.093 |
| Tritanopia (no blue cones) | #510011 | 0.021 |
| Achromatopsia (no color) | #232323 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #490B18
#490B18
oklch(27% 0.091 14.4)
- #002D2D
#002D2D
oklch(26.9% 0.046 194.8)
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 #490B18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.031
- Deep Brown #410200 ΔE 0.041
- Dark Maroon #3C0008 ΔE 0.046
- Chocolate Brown #411900 ΔE 0.052
- Dark Plum #3F012C ΔE 0.056
- Burgundy #610023 ΔE 0.058
- Aubergine #3D0734 ΔE 0.065
- Claret #680018 ΔE 0.071
Use #490B18 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.