#424561
Closest named color: Dark Grey Blue (#29465B). oklch(40% 0.047 279.3), rgb(66, 69, 97).
Aa
White text reads best on this color (9.31:1).
About this color
#424561 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.047 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.037 away. White text reads best on it, at 9.31:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #424561 |
| RGB | rgb(66, 69, 97) |
| HSL | hsl(234, 19%, 32%) |
| OKLCH | oklch(40% 0.047 279.3) |
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 #424561 | 9.31:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #424561 | 2.25:1 | Fails | Lc 12.5 | Not readable |
| #424561 text on white | 9.31:1 | AAA | Lc 91.5 | Preferred for body text |
| #424561 text on black | 2.25:1 | Fails | Lc -10.9 | 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 900.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E6
oklch(88.5% 0.019 279.5)
-
Step 300
300
#BBBFD8
oklch(80.9% 0.035 278.4)
-
Step 400
400
#999DC4
oklch(70.6% 0.057 280.2)
-
Step 500
500
#8085B5
oklch(63.1% 0.072 279.5)
-
Step 600
600
#696EA1
oklch(55.5% 0.079 279.2)
-
Step 700
700
#585C8A
oklch(49.1% 0.074 279.5)
-
Step 800
800
#484B70
oklch(42.6% 0.061 279.9)
-
Step 900
900 (this color)
#424561
oklch(40% 0.047 279.3)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#424561 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) | #3D4862 | 0.011 |
| Deuteranopia (no green cones) | #3B4660 | 0.011 |
| Tritanopia (no blue cones) | #3A4A4F | 0.041 |
| Achromatopsia (no color) | #474747 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424561
#424561
oklch(40% 0.047 279.3)
- #4E482A
#4E482A
oklch(40% 0.047 98.3)
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 #424561, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.037
- Charcoal #264653 ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.057
- YInMn Blue #415A77 ΔE 0.065
- Onyx #343A40 ΔE 0.066
- Dusk #4E5481 ΔE 0.066
- Dusty Grape #545775 ΔE 0.067
Use #424561 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.