#424763
Closest named color: Dark Grey Blue (#29465B). oklch(40.5% 0.048 276.2), rgb(66, 71, 99).
Aa
White text reads best on this color (9.07:1).
About this color
#424763 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.048 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.038 away. White text reads best on it, at 9.07:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #424763 |
| RGB | rgb(66, 71, 99) |
| HSL | hsl(231, 20%, 32%) |
| OKLCH | oklch(40.5% 0.048 276.2) |
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 #424763 | 9.07:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #424763 | 2.31:1 | Fails | Lc 13.1 | Not readable |
| #424763 text on white | 9.07:1 | AAA | Lc 90.9 | Preferred for body text |
| #424763 text on black | 2.31:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9EF
oklch(93.5% 0.008 278.6)
-
Step 200
200
#D6D8E4
oklch(88.4% 0.017 278.5)
-
Step 300
300
#BBBFD3
oklch(80.8% 0.028 276.7)
-
Step 400
400
#999FBD
oklch(70.8% 0.044 276.3)
-
Step 500
500
#8087AC
oklch(63.1% 0.056 276.3)
-
Step 600
600
#697098
oklch(55.5% 0.063 276.5)
-
Step 700
700
#585E82
oklch(49.1% 0.058 276.7)
-
Step 800
800 (this color)
#424763
oklch(40.5% 0.048 276.2)
-
Step 900
900
#3C4055
oklch(37.7% 0.036 276.1)
-
Step 950
950
#232632
oklch(27.1% 0.023 273.8)
#424763 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) | #3F4A64 | 0.010 |
| Deuteranopia (no green cones) | #3C4762 | 0.009 |
| Tritanopia (no blue cones) | #394C51 | 0.042 |
| Achromatopsia (no color) | #484848 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424763
#424763
oklch(40.5% 0.048 276.2)
- #51492B
#51492B
oklch(40.5% 0.047 94.9)
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 #424763, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.038
- Charcoal #264653 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.056
- Charcoal Grey #3C4142 ΔE 0.057
- YInMn Blue #415A77 ΔE 0.059
- Dusty Grape #545775 ΔE 0.061
- Dusk #4E5481 ΔE 0.061
- Light Navy #155084 ΔE 0.068
Use #424763 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.