#42476E
Closest named color: Dark Grey Blue (#29465B). oklch(41.1% 0.066 277.5), rgb(66, 71, 110).
Aa
White text reads best on this color (8.90:1).
About this color
#42476E is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.066 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.049 away. White text reads best on it, at 8.90:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.35:1 |
| White text | 8.90:1 |
Values
| HEX | #42476E |
| RGB | rgb(66, 71, 110) |
| HSL | hsl(233, 25%, 35%) |
| OKLCH | oklch(41.1% 0.066 277.5) |
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 #42476E | 8.90:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #42476E | 2.35:1 | Fails | Lc 13.6 | Not readable |
| #42476E text on white | 8.90:1 | AAA | Lc 90.4 | Preferred for body text |
| #42476E text on black | 2.35:1 | Fails | Lc -11.9 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300
#BABFDA
oklch(80.9% 0.038 277.2)
-
Step 400
400
#979EC7
oklch(70.8% 0.06 277.2)
-
Step 500
500
#7E85B9
oklch(63.1% 0.079 278)
-
Step 600
600
#676EA5
oklch(55.5% 0.086 277.7)
-
Step 700
700
#565C8D
oklch(49.1% 0.079 277.7)
-
Step 800
800 (this color)
#42476E
oklch(41.1% 0.066 277.5)
-
Step 900
900
#3B3F5D
oklch(37.7% 0.052 277.8)
-
Step 950
950
#222536
oklch(27% 0.032 276.3)
#42476E 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) | #3A4B70 | 0.015 |
| Deuteranopia (no green cones) | #37486D | 0.016 |
| Tritanopia (no blue cones) | #354F55 | 0.059 |
| Achromatopsia (no color) | #4A4A4A | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42476E
#42476E
oklch(41.1% 0.066 277.5)
- #544B1D
#544B1D
oklch(41.1% 0.066 98.3)
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 #42476E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.049
- Dusk #4E5481 ΔE 0.050
- YInMn Blue #415A77 ΔE 0.056
- Twilight #4E518B ΔE 0.056
- Light Navy #155084 ΔE 0.057
- Dusty Grape #545775 ΔE 0.058
- Dusk Blue #26538D ΔE 0.061
- Dark Slate Blue #483D8B ΔE 0.061
Use #42476E 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.