#492D8E
Closest named color: Dark Slate Blue (#483D8B). oklch(39% 0.152 291), rgb(73, 45, 142).
Aa
White text reads best on this color (10.24:1).
About this color
#492D8E is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.152 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.038 away. White text reads best on it, at 10.24:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.04:1 |
| White text | 10.24:1 |
Values
| HEX | #492D8E |
| RGB | rgb(73, 45, 142) |
| HSL | hsl(257, 52%, 37%) |
| OKLCH | oklch(39% 0.152 291) |
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 #492D8E | 10.24:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #492D8E | 2.04:1 | Fails | Lc 10.7 | Not readable |
| #492D8E text on white | 10.24:1 | AAA | Lc 93.3 | Preferred for body text |
| #492D8E text on black | 2.04:1 | Fails | Lc -9.2 | 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 900.
-
Step 50
50
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FF
oklch(93.7% 0.032 289.6)
-
Step 200
200
#D8D3FF
oklch(88.5% 0.06 290.3)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A28BFF
oklch(70.7% 0.166 290.7)
-
Step 500
500
#8F67FF
oklch(63.2% 0.216 291.1)
-
Step 600
600
#7C3FF7
oklch(55.5% 0.252 290.9)
-
Step 700
700
#692ED8
oklch(49.1% 0.235 290.7)
-
Step 800
800
#5529AE
oklch(42.6% 0.195 290.8)
-
Step 900
900 (this color)
#492D8E
oklch(39% 0.152 291)
-
Step 950
950
#281A51
oklch(27.1% 0.096 290.2)
#492D8E 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) | #004291 | 0.085 |
| Deuteranopia (no green cones) | #003F8C | 0.084 |
| Tritanopia (no blue cones) | #334559 | 0.123 |
| Achromatopsia (no color) | #414141 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #492D8E
#492D8E
oklch(39% 0.152 291)
- #474900
#474900
oklch(39% 0.086 111.6)
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 #492D8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.038
- Blueberry #464196 ΔE 0.047
- Imperial Purple #480CA8 ΔE 0.059
- Rebecca Purple #663399 ΔE 0.061
- Chrysanthemum #560BAD ΔE 0.065
- Indigo #4B0082 ΔE 0.066
- Indigo Blue #3A18B1 ΔE 0.072
- Sapphire #2138AB ΔE 0.077
Use #492D8E 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.