#424E6E
Closest named color: YInMn Blue (#415A77). oklch(42.7% 0.056 268.2), rgb(66, 78, 110).
Aa
White text reads best on this color (8.24:1).
About this color
#424E6E is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.056 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 8.24:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.54:1 |
| White text | 8.24:1 |
Values
| HEX | #424E6E |
| RGB | rgb(66, 78, 110) |
| HSL | hsl(224, 25%, 35%) |
| OKLCH | oklch(42.7% 0.056 268.2) |
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 #424E6E | 8.24:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #424E6E | 2.54:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #424E6E text on white | 8.24:1 | AAA | Lc 88.5 | Fine for body text |
| #424E6E 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
#93A0C2
oklch(70.7% 0.052 268.6)
-
Step 500
500
#7888B2
oklch(63% 0.066 268.3)
-
Step 600
600
#61729E
oklch(55.6% 0.072 267.8)
-
Step 700
700
#505F87
oklch(49% 0.067 268.1)
-
Step 800
800 (this color)
#424E6E
oklch(42.7% 0.056 268.2)
-
Step 900
900
#384159
oklch(37.8% 0.043 268.4)
-
Step 950
950
#212634
oklch(27% 0.027 269.3)
#424E6E 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) | #43516F | 0.009 |
| Deuteranopia (no green cones) | #3F4D6D | 0.006 |
| Tritanopia (no blue cones) | #345459 | 0.049 |
| Achromatopsia (no color) | #4F4F4F | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424E6E
#424E6E
oklch(42.7% 0.056 268.2)
- #5C4D2A
#5C4D2A
oklch(42.7% 0.055 86.9)
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 #424E6E, 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 0.039
- Dusty Grape #545775 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.051
- Twilight #4E518B ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.053
- Light Navy #155084 ΔE 0.055
- Dusk Blue #26538D ΔE 0.057
Use #424E6E 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.