#424198
Closest named color: Blueberry (#464196). oklch(42.7% 0.139 279.3), rgb(66, 65, 152).
Aa
White text reads best on this color (8.60:1).
About this color
#424198 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.139 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.007 away. White text reads best on it, at 8.60:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.44:1 |
| White text | 8.60:1 |
Values
| HEX | #424198 |
| RGB | rgb(66, 65, 152) |
| HSL | hsl(241, 40%, 43%) |
| OKLCH | oklch(42.7% 0.139 279.3) |
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 #424198 | 8.60:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #424198 | 2.44:1 | Fails | Lc 14.7 | Not readable |
| #424198 text on white | 8.60:1 | AAA | Lc 89.2 | Fine for body text |
| #424198 text on black | 2.44:1 | Fails | Lc -13.0 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300
#B5BCF5
oklch(81% 0.081 279)
-
Step 400
400
#9097F0
oklch(70.8% 0.13 279.1)
-
Step 500
500
#777AEB
oklch(63.1% 0.166 279.4)
-
Step 600
600
#6160D9
oklch(55.6% 0.181 279.1)
-
Step 700
700
#514FBC
oklch(49.2% 0.167 279.1)
-
Step 800
800 (this color)
#424198
oklch(42.7% 0.139 279.3)
-
Step 900
900
#373879
oklch(37.7% 0.108 279.2)
-
Step 950
950
#202147
oklch(26.9% 0.069 279.5)
#424198 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) | #004F9B | 0.060 |
| Deuteranopia (no green cones) | #004896 | 0.058 |
| Tritanopia (no blue cones) | #165566 | 0.119 |
| Achromatopsia (no color) | #4C4C4C | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424198
#424198
oklch(42.7% 0.139 279.3)
- #5B4F00
#5B4F00
oklch(42.7% 0.088 99.2)
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 #424198, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.007
- Dark Slate Blue #483D8B ΔE 0.024
- Cobalt #1E488F ΔE 0.047
- Twilight #4E518B ΔE 0.056
- Sapphire #2138AB ΔE 0.059
- Dusk Blue #26538D ΔE 0.060
- Rebecca Purple #663399 ΔE 0.067
- Light Navy #155084 ΔE 0.070
Use #424198 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.