#42496B
Closest named color: Dark Grey Blue (#29465B). oklch(41.4% 0.058 274.7), rgb(66, 73, 107).
Aa
White text reads best on this color (8.76:1).
About this color
#42496B is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.058 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.046 away. White text reads best on it, at 8.76:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #42496B |
| RGB | rgb(66, 73, 107) |
| HSL | hsl(230, 24%, 34%) |
| OKLCH | oklch(41.4% 0.058 274.7) |
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 #42496B | 8.76:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #42496B | 2.39:1 | Fails | Lc 14.0 | Not readable |
| #42496B text on white | 8.76:1 | AAA | Lc 90.0 | Fine for body text |
| #42496B text on black | 2.39:1 | Fails | Lc -12.3 | 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
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E6
oklch(88.4% 0.019 276.3)
-
Step 300
300
#BABFD7
oklch(80.8% 0.034 276.3)
-
Step 400
400
#969FC3
oklch(70.8% 0.054 274)
-
Step 500
500
#7D87B4
oklch(63.2% 0.069 274.6)
-
Step 600
600
#66709F
oklch(55.6% 0.074 274.5)
-
Step 700
700
#555E88
oklch(49.2% 0.068 274.3)
-
Step 800
800 (this color)
#42496B
oklch(41.4% 0.058 274.7)
-
Step 900
900
#3A405A
oklch(37.7% 0.045 274)
-
Step 950
950
#222535
oklch(26.9% 0.03 276)
#42496B 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) | #3E4C6C | 0.010 |
| Deuteranopia (no green cones) | #3B496A | 0.010 |
| Tritanopia (no blue cones) | #365055 | 0.052 |
| Achromatopsia (no color) | #4B4B4B | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42496B
#42496B
oklch(41.4% 0.058 274.7)
- #554B25
#554B25
oklch(41.4% 0.057 95)
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 #42496B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.046
- Dusk #4E5481 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
- Dusty Grape #545775 ΔE 0.053
- Light Navy #155084 ΔE 0.058
- Charcoal #264653 ΔE 0.058
- Twilight #4E518B ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.062
Use #42496B 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.