#45457E
Closest named color: Dark Slate Blue (#483D8B). oklch(41.9% 0.093 281.6), rgb(69, 69, 126).
Aa
White text reads best on this color (8.72:1).
About this color
#45457E is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.093 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 8.72:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #45457E |
| RGB | rgb(69, 69, 126) |
| HSL | hsl(240, 29%, 38%) |
| OKLCH | oklch(41.9% 0.093 281.6) |
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 #45457E | 8.72:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #45457E | 2.40:1 | Fails | Lc 14.2 | Not readable |
| #45457E text on white | 8.72:1 | AAA | Lc 89.8 | Fine for body text |
| #45457E text on black | 2.40:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7ED
oklch(88.4% 0.03 281.6)
-
Step 300
300
#BABDE4
oklch(80.9% 0.055 281.6)
-
Step 400
400
#979AD6
oklch(70.6% 0.087 281.7)
-
Step 500
500
#7E80CB
oklch(63% 0.112 281.5)
-
Step 600
600
#6869B8
oklch(55.6% 0.121 281.2)
-
Step 700
700
#57579F
oklch(49.2% 0.113 281.4)
-
Step 800
800 (this color)
#45457E
oklch(41.9% 0.093 281.6)
-
Step 900
900
#3B3C67
oklch(37.6% 0.073 281.3)
-
Step 950
950
#23233C
oklch(26.9% 0.046 282.9)
#45457E 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) | #2F4D80 | 0.034 |
| Deuteranopia (no green cones) | #2C497D | 0.034 |
| Tritanopia (no blue cones) | #33515B | 0.082 |
| Achromatopsia (no color) | #4B4B4B | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45457E
#45457E
oklch(41.9% 0.093 281.6)
- #574E00
#574E00
oklch(42% 0.088 101.8)
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 #45457E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Twilight #4E518B ΔE 0.041
- Blueberry #464196 ΔE 0.043
- Dusk #4E5481 ΔE 0.047
- Dusk Blue #26538D ΔE 0.052
- Cobalt #1E488F ΔE 0.053
- Light Navy #155084 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.062
Use #45457E 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.