#42465C
Closest named color: Dark Grey Blue (#29465B). oklch(40% 0.037 276.5), rgb(66, 70, 92).
Aa
White text reads best on this color (9.28:1).
About this color
#42465C is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.037 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.035 away. White text reads best on it, at 9.28:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.26:1 |
| White text | 9.28:1 |
Values
| HEX | #42465C |
| RGB | rgb(66, 70, 92) |
| HSL | hsl(231, 16%, 31%) |
| OKLCH | oklch(40% 0.037 276.5) |
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 #42465C | 9.28:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #42465C | 2.26:1 | Fails | Lc 12.5 | Not readable |
| #42465C text on white | 9.28:1 | AAA | Lc 91.4 | Preferred for body text |
| #42465C text on black | 2.26:1 | Fails | Lc -10.9 | 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 900.
-
Step 50
50
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9EF
oklch(93.5% 0.008 278.6)
-
Step 200
200
#D6D8E4
oklch(88.4% 0.017 278.5)
-
Step 300
300
#BBBFD3
oklch(80.8% 0.028 276.7)
-
Step 400
400
#999FBD
oklch(70.8% 0.044 276.3)
-
Step 500
500
#8087AD
oklch(63.2% 0.058 276.5)
-
Step 600
600
#697098
oklch(55.5% 0.063 276.5)
-
Step 700
700
#585E82
oklch(49.1% 0.058 276.7)
-
Step 800
800
#484D69
oklch(42.7% 0.047 276.4)
-
Step 900
900 (this color)
#42465C
oklch(40% 0.037 276.5)
-
Step 950
950
#232632
oklch(27.1% 0.023 273.8)
#42465C 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) | #40485D | 0.006 |
| Deuteranopia (no green cones) | #3E465B | 0.007 |
| Tritanopia (no blue cones) | #3C4A4D | 0.034 |
| Achromatopsia (no color) | #474747 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42465C
#42465C
oklch(40% 0.037 276.5)
- #4D4830
#4D4830
oklch(40% 0.038 97.8)
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 #42465C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.035
- Charcoal #264653 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.049
- Onyx #343A40 ΔE 0.061
- YInMn Blue #415A77 ΔE 0.066
- Dark Blue Grey #1F3B4D ΔE 0.067
- Dusty Grape #545775 ΔE 0.068
Use #42465C 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.