#42476F
Closest named color: Dusk (#4E5481). oklch(41.2% 0.067 277.6), rgb(66, 71, 111).
Aa
White text reads best on this color (8.88:1).
About this color
#42476F is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.067 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.049 away. White text reads best on it, at 8.88:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.36:1 |
| White text | 8.88:1 |
Values
| HEX | #42476F |
| RGB | rgb(66, 71, 111) |
| HSL | hsl(233, 25%, 35%) |
| OKLCH | oklch(41.2% 0.067 277.6) |
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 #42476F | 8.88:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #42476F | 2.36:1 | Fails | Lc 13.7 | Not readable |
| #42476F text on white | 8.88:1 | AAA | Lc 90.3 | Preferred for body text |
| #42476F text on black | 2.36:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300
#BABFDA
oklch(80.9% 0.038 277.2)
-
Step 400
400
#979DC8
oklch(70.6% 0.063 278.5)
-
Step 500
500
#7D85BA
oklch(63.1% 0.08 277.2)
-
Step 600
600
#676EA6
oklch(55.6% 0.087 277.7)
-
Step 700
700
#565C8E
oklch(49.2% 0.08 277.8)
-
Step 800
800 (this color)
#42476F
oklch(41.2% 0.067 277.6)
-
Step 900
900
#3B3F5D
oklch(37.7% 0.052 277.8)
-
Step 950
950
#222537
oklch(27% 0.034 276.6)
#42476F 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) | #3A4C71 | 0.017 |
| Deuteranopia (no green cones) | #37486E | 0.016 |
| Tritanopia (no blue cones) | #354F56 | 0.059 |
| Achromatopsia (no color) | #4A4A4A | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42476F
#42476F
oklch(41.2% 0.067 277.6)
- #554B1B
#554B1B
oklch(41.2% 0.068 97.5)
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 #42476F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.050
- Twilight #4E518B ΔE 0.055
- Light Navy #155084 ΔE 0.056
- YInMn Blue #415A77 ΔE 0.056
- Dusty Grape #545775 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.059
- Dusk Blue #26538D ΔE 0.060
Use #42476F 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.