#424865
Closest named color: Dark Grey Blue (#29465B). oklch(40.9% 0.049 275), rgb(66, 72, 101).
Aa
White text reads best on this color (8.94:1).
About this color
#424865 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.049 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.040 away. White text reads best on it, at 8.94:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #424865 |
| RGB | rgb(66, 72, 101) |
| HSL | hsl(230, 21%, 33%) |
| OKLCH | oklch(40.9% 0.049 275) |
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 #424865 | 8.94:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #424865 | 2.34:1 | Fails | Lc 13.5 | Not readable |
| #424865 text on white | 8.94:1 | AAA | Lc 90.5 | Preferred for body text |
| #424865 text on black | 2.34:1 | Fails | Lc -11.8 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D6D9E4
oklch(88.6% 0.015 273.8)
-
Step 300
300
#BBC0D4
oklch(81% 0.029 274.6)
-
Step 400
400
#989FBE
oklch(70.7% 0.046 275.2)
-
Step 500
500
#7F87AE
oklch(63.1% 0.059 275.6)
-
Step 600
600
#687199
oklch(55.7% 0.063 274.4)
-
Step 700
700
#575E83
oklch(49.1% 0.06 275.7)
-
Step 800
800 (this color)
#424865
oklch(40.9% 0.049 275)
-
Step 900
900
#3B4056
oklch(37.6% 0.038 274.5)
-
Step 950
950
#232633
oklch(27.1% 0.025 274.5)
#424865 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) | #3F4B66 | 0.009 |
| Deuteranopia (no green cones) | #3D4864 | 0.008 |
| Tritanopia (no blue cones) | #384E52 | 0.045 |
| Achromatopsia (no color) | #494949 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424865
#424865
oklch(40.9% 0.049 275)
- #524A2A
#524A2A
oklch(40.9% 0.049 95.8)
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 #424865, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.040
- Charcoal #264653 ΔE 0.051
- YInMn Blue #415A77 ΔE 0.056
- Dark Slate Gray #2F4F4F ΔE 0.057
- Dusk #4E5481 ΔE 0.057
- Dusty Grape #545775 ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.060
- Light Navy #155084 ΔE 0.065
Use #424865 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.