#424F69
Closest named color: YInMn Blue (#415A77). oklch(42.7% 0.047 263.9), rgb(66, 79, 105).
Aa
White text reads best on this color (8.22:1).
About this color
#424F69 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.047 and its hue 264°. 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 8.22:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #424F69 |
| RGB | rgb(66, 79, 105) |
| HSL | hsl(220, 23%, 34%) |
| OKLCH | oklch(42.7% 0.047 263.9) |
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 #424F69 | 8.22:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #424F69 | 2.55:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #424F69 text on white | 8.22:1 | AAA | Lc 88.4 | Fine for body text |
| #424F69 text on black | 2.55:1 | Fails | Lc -13.8 | 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4D9E3
oklch(88.4% 0.015 264.5)
-
Step 300
300
#B8C1D3
oklch(81% 0.027 264.4)
-
Step 400
400
#93A1BC
oklch(70.7% 0.043 263.6)
-
Step 500
500
#788AAC
oklch(63.2% 0.056 263)
-
Step 600
600
#617397
oklch(55.5% 0.06 263.9)
-
Step 700
700
#506181
oklch(49.2% 0.056 262.8)
-
Step 800
800 (this color)
#424F69
oklch(42.7% 0.047 263.9)
-
Step 900
900
#384255
oklch(37.8% 0.035 263.1)
-
Step 950
950
#212632
oklch(26.9% 0.024 267.1)
#424F69 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) | #46516A | 0.009 |
| Deuteranopia (no green cones) | #424D68 | 0.006 |
| Tritanopia (no blue cones) | #365458 | 0.041 |
| Achromatopsia (no color) | #4F4F4F | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424F69
#424F69
oklch(42.7% 0.047 263.9)
- #5B4D31
#5B4D31
oklch(42.7% 0.046 84)
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 #424F69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.036
- Dusty Grape #545775 ΔE 0.041
- Dusk #4E5481 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.055
- Charcoal #264653 ΔE 0.060
- Twilight #4E518B ΔE 0.060
Use #424F69 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.