#492B8F
Closest named color: Dark Slate Blue (#483D8B). oklch(38.8% 0.156 291.2), rgb(73, 43, 143).
Aa
White text reads best on this color (10.36:1).
About this color
#492B8F is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.156 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 0.042 away. White text reads best on it, at 10.36:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.02:1 |
| White text | 10.36:1 |
Values
| HEX | #492B8F |
| RGB | rgb(73, 43, 143) |
| HSL | hsl(258, 54%, 36%) |
| OKLCH | oklch(38.8% 0.156 291.2) |
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 #492B8F | 10.36:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #492B8F | 2.02:1 | Fails | Lc 10.5 | Not readable |
| #492B8F text on white | 10.36:1 | AAA | Lc 93.5 | Preferred for body text |
| #492B8F text on black | 2.02:1 | 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
#E9E6FF
oklch(93.5% 0.034 291.2)
-
Step 200
200
#D9D3FF
oklch(88.6% 0.06 291.4)
-
Step 300
300
#C1B5FF
oklch(81% 0.104 291.3)
-
Step 400
400
#A38AFF
oklch(70.7% 0.167 291.4)
-
Step 500
500
#8F66FF
oklch(63% 0.217 291.2)
-
Step 600
600
#7D3BFA
oklch(55.5% 0.259 291.2)
-
Step 700
700
#6A2ADA
oklch(49% 0.241 291.1)
-
Step 800
800
#5627B0
oklch(42.7% 0.199 291.1)
-
Step 900
900 (this color)
#492B8F
oklch(38.8% 0.156 291.2)
-
Step 950
950
#291952
oklch(27.1% 0.099 291.3)
#492B8F 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) | #004292 | 0.087 |
| Deuteranopia (no green cones) | #003E8D | 0.086 |
| Tritanopia (no blue cones) | #334459 | 0.125 |
| Achromatopsia (no color) | #404040 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #492B8F
#492B8F
oklch(38.8% 0.156 291.2)
- #474800
#474800
oklch(38.8% 0.085 110.7)
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 #492B8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.042
- Blueberry #464196 ΔE 0.051
- Imperial Purple #480CA8 ΔE 0.055
- Chrysanthemum #560BAD ΔE 0.062
- Rebecca Purple #663399 ΔE 0.062
- Indigo #4B0082 ΔE 0.063
- Indigo Blue #3A18B1 ΔE 0.069
- Sapphire #2138AB ΔE 0.077
Use #492B8F 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.