#42466B
Closest named color: Dark Grey Blue (#29465B). oklch(40.7% 0.062 278.5), rgb(66, 70, 107).
Aa
White text reads best on this color (9.05:1).
About this color
#42466B is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.062 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.046 away. White text reads best on it, at 9.05:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.32:1 |
| White text | 9.05:1 |
Values
| HEX | #42466B |
| RGB | rgb(66, 70, 107) |
| HSL | hsl(234, 24%, 34%) |
| OKLCH | oklch(40.7% 0.062 278.5) |
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 #42466B | 9.05:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #42466B | 2.32:1 | Fails | Lc 13.2 | Not readable |
| #42466B text on white | 9.05:1 | AAA | Lc 90.8 | Preferred for body text |
| #42466B text on black | 2.32:1 | Fails | Lc -11.5 | 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
#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
#BBBFD8
oklch(80.9% 0.035 278.4)
-
Step 400
400
#989DC5
oklch(70.6% 0.059 279.2)
-
Step 500
500
#7F85B6
oklch(63.1% 0.074 278.6)
-
Step 600
600
#696EA2
oklch(55.5% 0.081 279.2)
-
Step 700
700
#575C8B
oklch(49.1% 0.075 278.6)
-
Step 800
800 (this color)
#42466B
oklch(40.7% 0.062 278.5)
-
Step 900
900
#3C3F5B
oklch(37.7% 0.048 279.1)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#42466B 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) | #3A4A6D | 0.015 |
| Deuteranopia (no green cones) | #38476A | 0.015 |
| Tritanopia (no blue cones) | #364D53 | 0.055 |
| Achromatopsia (no color) | #494949 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42466B
#42466B
oklch(40.7% 0.062 278.5)
- #524A1F
#524A1F
oklch(40.7% 0.062 98.9)
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 #42466B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.046
- Dusk #4E5481 ΔE 0.055
- Charcoal #264653 ΔE 0.059
- YInMn Blue #415A77 ΔE 0.059
- Light Navy #155084 ΔE 0.060
- Dusty Grape #545775 ΔE 0.060
- Twilight #4E518B ΔE 0.061
- Dark Slate Blue #483D8B ΔE 0.064
Use #42466B 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.