#42466C
Closest named color: Dark Grey Blue (#29465B). oklch(40.8% 0.064 278.6), rgb(66, 70, 108).
Aa
White text reads best on this color (9.03:1).
About this color
#42466C is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.064 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.047 away. White text reads best on it, at 9.03:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.32:1 |
| White text | 9.03:1 |
Values
| HEX | #42466C |
| RGB | rgb(66, 70, 108) |
| HSL | hsl(234, 24%, 34%) |
| OKLCH | oklch(40.8% 0.064 278.6) |
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 #42466C | 9.03:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #42466C | 2.32:1 | Fails | Lc 13.2 | Not readable |
| #42466C text on white | 9.03:1 | AAA | Lc 90.7 | Preferred for body text |
| #42466C text on black | 2.32:1 | Fails | Lc -11.6 | 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
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E7
oklch(88.5% 0.021 279.9)
-
Step 300
300
#BBBFD9
oklch(81% 0.037 278.6)
-
Step 400
400
#989DC6
oklch(70.6% 0.06 279.3)
-
Step 500
500
#7F85B7
oklch(63.1% 0.075 278.7)
-
Step 600
600
#686EA3
oklch(55.5% 0.083 278.4)
-
Step 700
700
#575C8C
oklch(49.1% 0.077 278.6)
-
Step 800
800 (this color)
#42466C
oklch(40.8% 0.064 278.6)
-
Step 900
900
#3B3F5C
oklch(37.7% 0.05 277.7)
-
Step 950
950
#232536
oklch(27% 0.032 278.9)
#42466C 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) | #3A4A6E | 0.015 |
| Deuteranopia (no green cones) | #37476B | 0.016 |
| Tritanopia (no blue cones) | #364D54 | 0.055 |
| Achromatopsia (no color) | #494949 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42466C
#42466C
oklch(40.8% 0.064 278.6)
- #534A1E
#534A1E
oklch(40.8% 0.064 97.9)
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 #42466C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.047
- Dusk #4E5481 ΔE 0.054
- YInMn Blue #415A77 ΔE 0.059
- Light Navy #155084 ΔE 0.059
- Twilight #4E518B ΔE 0.060
- Charcoal #264653 ΔE 0.060
- Dusty Grape #545775 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.062
Use #42466C 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.