#424E6D
Closest named color: YInMn Blue (#415A77). oklch(42.7% 0.054 267.8), rgb(66, 78, 109).
Aa
White text reads best on this color (8.26:1).
About this color
#424E6D is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.054 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.036 away. White text reads best on it, at 8.26:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #424E6D |
| RGB | rgb(66, 78, 109) |
| HSL | hsl(223, 25%, 34%) |
| OKLCH | oklch(42.7% 0.054 267.8) |
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 #424E6D | 8.26:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #424E6D | 2.54:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #424E6D text on white | 8.26:1 | AAA | Lc 88.5 | Fine for body text |
| #424E6D text on black | 2.54:1 | Fails | Lc -13.7 | 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
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E5
oklch(88.5% 0.017 267.8)
-
Step 300
300
#B8C0D6
oklch(80.9% 0.032 269.8)
-
Step 400
400
#93A0C1
oklch(70.7% 0.051 268.2)
-
Step 500
500
#7889B1
oklch(63.2% 0.064 266.7)
-
Step 600
600
#61729D
oklch(55.6% 0.07 267.5)
-
Step 700
700
#515F86
oklch(49% 0.065 268.8)
-
Step 800
800 (this color)
#424E6D
oklch(42.7% 0.054 267.8)
-
Step 900
900
#384158
oklch(37.7% 0.041 267.9)
-
Step 950
950
#212634
oklch(27% 0.027 269.3)
#424E6D 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) | #44516E | 0.010 |
| Deuteranopia (no green cones) | #404D6C | 0.005 |
| Tritanopia (no blue cones) | #355459 | 0.047 |
| Achromatopsia (no color) | #4E4E4E | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424E6D
#424E6D
oklch(42.7% 0.054 267.8)
- #5B4D2B
#5B4D2B
oklch(42.6% 0.054 87.7)
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 #424E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.036
- Dusk #4E5481 ΔE 0.040
- Dusty Grape #545775 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.052
- Twilight #4E518B ΔE 0.054
- Light Navy #155084 ΔE 0.056
- Dusk Blue #26538D ΔE 0.058
Use #424E6D 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.