#45307B
Closest named color: Dark Slate Blue (#483D8B). oklch(37.6% 0.122 292.4), rgb(69, 48, 123).
Aa
White text reads best on this color (10.70:1).
About this color
#45307B is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.122 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 0.041 away. White text reads best on it, at 10.70:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.96:1 |
| White text | 10.70:1 |
Values
| HEX | #45307B |
| RGB | rgb(69, 48, 123) |
| HSL | hsl(257, 44%, 34%) |
| OKLCH | oklch(37.6% 0.122 292.4) |
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 #45307B | 10.70:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #45307B | 1.96:1 | Fails | Lc 9.4 | Not readable |
| #45307B text on white | 10.70:1 | AAA | Lc 94.5 | Preferred for body text |
| #45307B text on black | 1.96:1 | Fails | Lc -8.1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#D9D4F9
oklch(88.6% 0.051 291.5)
-
Step 300
300
#C2B6F7
oklch(80.9% 0.091 292.7)
-
Step 400
400
#A48DF3
oklch(70.6% 0.147 292.6)
-
Step 500
500
#906DEF
oklch(63.1% 0.188 292.6)
-
Step 600
600
#7B51DD
oklch(55.6% 0.203 292.3)
-
Step 700
700
#6840C0
oklch(49.1% 0.189 292.4)
-
Step 800
800
#55369B
oklch(42.7% 0.156 292.7)
-
Step 900
900 (this color)
#45307B
oklch(37.6% 0.122 292.4)
-
Step 950
950
#281D48
oklch(26.9% 0.077 292.2)
#45307B 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) | #003F7D | 0.079 |
| Deuteranopia (no green cones) | #073D79 | 0.076 |
| Tritanopia (no blue cones) | #364150 | 0.100 |
| Achromatopsia (no color) | #3E3E3E | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45307B
#45307B
oklch(37.6% 0.122 292.4)
- #424500
#424500
oklch(37.5% 0.083 112.6)
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 #45307B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.059
- Indigo #4B0082 ΔE 0.072
- Cobalt #1E488F ΔE 0.079
- Twilight Blue #0A437A ΔE 0.079
- Rebecca Purple #663399 ΔE 0.080
- Royal Purple #4B006E ΔE 0.081
- Marine Blue #01386A ΔE 0.087
Use #45307B 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.