#404477
Closest named color: Dark Slate Blue (#483D8B). oklch(40.8% 0.085 278.5), rgb(64, 68, 119).
Aa
White text reads best on this color (9.08:1).
About this color
#404477 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.085 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.043 away. White text reads best on it, at 9.08:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.08:1 |
Values
| HEX | #404477 |
| RGB | rgb(64, 68, 119) |
| HSL | hsl(236, 30%, 36%) |
| OKLCH | oklch(40.8% 0.085 278.5) |
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 #404477 | 9.08:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #404477 | 2.31:1 | Fails | Lc 13.2 | Not readable |
| #404477 text on white | 9.08:1 | AAA | Lc 90.8 | Preferred for body text |
| #404477 text on black | 2.31:1 | Fails | Lc -11.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D5D8EC
oklch(88.6% 0.028 279)
-
Step 300
300
#B9BEE1
oklch(80.9% 0.05 278.8)
-
Step 400
400
#959CD2
oklch(70.7% 0.079 278.4)
-
Step 500
500
#7C83C6
oklch(63.2% 0.101 278.5)
-
Step 600
600
#656BB3
oklch(55.5% 0.111 278.5)
-
Step 700
700
#54599A
oklch(49% 0.103 278.5)
-
Step 800
800 (this color)
#404477
oklch(40.8% 0.085 278.5)
-
Step 900
900
#3A3E64
oklch(37.8% 0.065 278.2)
-
Step 950
950
#22243B
oklch(27% 0.043 279.3)
#404477 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) | #314B79 | 0.026 |
| Deuteranopia (no green cones) | #2D4676 | 0.026 |
| Tritanopia (no blue cones) | #2E4E57 | 0.074 |
| Achromatopsia (no color) | #484848 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404477
#404477
oklch(40.8% 0.085 278.5)
- #564A00
#564A00
oklch(40.9% 0.085 98.6)
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 #404477, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.043
- Twilight #4E518B ΔE 0.052
- Light Navy #155084 ΔE 0.053
- Cobalt #1E488F ΔE 0.054
- Dusk #4E5481 ΔE 0.054
- Blueberry #464196 ΔE 0.054
- Dusk Blue #26538D ΔE 0.055
- Twilight Blue #0A437A ΔE 0.056
Use #404477 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.