#492D8B
Closest named color: Dark Slate Blue (#483D8B). oklch(38.8% 0.148 291.7), rgb(73, 45, 139).
Aa
White text reads best on this color (10.33:1).
About this color
#492D8B is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.148 and its hue 292°. 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 10.33:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.03:1 |
| White text | 10.33:1 |
Values
| HEX | #492D8B |
| RGB | rgb(73, 45, 139) |
| HSL | hsl(258, 51%, 36%) |
| OKLCH | oklch(38.8% 0.148 291.7) |
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 #492D8B | 10.33:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #492D8B | 2.03:1 | Fails | Lc 10.4 | Not readable |
| #492D8B text on white | 10.33:1 | AAA | Lc 93.5 | Preferred for body text |
| #492D8B text on black | 2.03:1 | Fails | Lc -9.0 | 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 900.
-
Step 50
50
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#EAE7FE
oklch(93.7% 0.031 291.8)
-
Step 200
200
#D9D3FF
oklch(88.6% 0.06 291.4)
-
Step 300
300
#C1B5FF
oklch(81% 0.104 291.3)
-
Step 400
400
#A48AFF
oklch(70.7% 0.167 291.8)
-
Step 500
500
#9066FF
oklch(63.1% 0.217 291.6)
-
Step 600
600
#7D41F3
oklch(55.5% 0.246 291.7)
-
Step 700
700
#6A30D4
oklch(49% 0.229 291.6)
-
Step 800
800
#562BAB
oklch(42.7% 0.189 291.6)
-
Step 900
900 (this color)
#492D8B
oklch(38.8% 0.148 291.7)
-
Step 950
950
#291A4F
oklch(27% 0.093 292.1)
#492D8B 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) | #00428E | 0.086 |
| Deuteranopia (no green cones) | #003E89 | 0.085 |
| Tritanopia (no blue cones) | #354458 | 0.118 |
| Achromatopsia (no color) | #404040 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #492D8B
#492D8B
oklch(38.8% 0.148 291.7)
- #464800
#464800
oklch(38.7% 0.085 111.6)
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 #492D8B, 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 0.049
- Rebecca Purple #663399 ΔE 0.062
- Imperial Purple #480CA8 ΔE 0.063
- Indigo #4B0082 ΔE 0.065
- Chrysanthemum #560BAD ΔE 0.069
- Indigo Blue #3A18B1 ΔE 0.076
- Sapphire #2138AB ΔE 0.080
Use #492D8B 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.