#42476C
Closest named color: Dark Grey Blue (#29465B). oklch(41% 0.062 277.4), rgb(66, 71, 108).
Aa
White text reads best on this color (8.93:1).
About this color
#42476C is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.062 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.047 away. White text reads best on it, at 8.93:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.34:1 |
| White text | 8.93:1 |
Values
| HEX | #42476C |
| RGB | rgb(66, 71, 108) |
| HSL | hsl(233, 24%, 34%) |
| OKLCH | oklch(41% 0.062 277.4) |
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 #42476C | 8.93:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #42476C | 2.34:1 | Fails | Lc 13.5 | Not readable |
| #42476C text on white | 8.93:1 | AAA | Lc 90.5 | Preferred for body text |
| #42476C text on black | 2.34:1 | Fails | Lc -11.8 | 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
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#BABFD9
oklch(80.9% 0.037 276.9)
-
Step 400
400
#979EC5
oklch(70.7% 0.058 276.9)
-
Step 500
500
#7E85B7
oklch(63% 0.076 277.8)
-
Step 600
600
#686FA2
oklch(55.7% 0.08 277.5)
-
Step 700
700
#565C8B
oklch(49% 0.076 277.7)
-
Step 800
800 (this color)
#42476C
oklch(41% 0.062 277.4)
-
Step 900
900
#3B3F5B
oklch(37.6% 0.048 277.5)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#42476C 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) | #3B4B6E | 0.014 |
| Deuteranopia (no green cones) | #38486B | 0.015 |
| Tritanopia (no blue cones) | #364E54 | 0.055 |
| Achromatopsia (no color) | #494949 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42476C
#42476C
oklch(41% 0.062 277.4)
- #544A20
#544A20
oklch(40.9% 0.062 96.1)
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 #42476C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.047
- Dusk #4E5481 ΔE 0.052
- YInMn Blue #415A77 ΔE 0.056
- Dusty Grape #545775 ΔE 0.058
- Light Navy #155084 ΔE 0.059
- Twilight #4E518B ΔE 0.059
- Charcoal #264653 ΔE 0.060
- Dusk Blue #26538D ΔE 0.063
Use #42476C 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.