#3E4E66
Closest named color: YInMn Blue (#415A77). oklch(42% 0.045 258.3), rgb(62, 78, 102).
Aa
White text reads best on this color (8.44:1).
About this color
#3E4E66 is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.045 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.041 away. White text reads best on it, at 8.44:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.48:1 |
| White text | 8.44:1 |
Values
| HEX | #3E4E66 |
| RGB | rgb(62, 78, 102) |
| HSL | hsl(216, 24%, 32%) |
| OKLCH | oklch(42% 0.045 258.3) |
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 #3E4E66 | 8.44:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #3E4E66 | 2.48:1 | Fails | Lc 14.9 | Not readable |
| #3E4E66 text on white | 8.44:1 | AAA | Lc 89.1 | Fine for body text |
| #3E4E66 text on black | 2.48:1 | Fails | Lc -13.1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D3DAE3
oklch(88.6% 0.015 254.6)
-
Step 300
300
#B6C1D2
oklch(80.8% 0.027 259)
-
Step 400
400
#91A2BB
oklch(70.7% 0.041 257.9)
-
Step 500
500
#768BAA
oklch(63.2% 0.053 258)
-
Step 600
600
#5E7496
oklch(55.5% 0.059 259)
-
Step 700
700
#4E6280
oklch(49.2% 0.054 258.3)
-
Step 800
800 (this color)
#3E4E66
oklch(42% 0.045 258.3)
-
Step 900
900
#364254
oklch(37.6% 0.035 258.3)
-
Step 950
950
#202731
oklch(27% 0.021 257.3)
#3E4E66 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) | #454F67 | 0.011 |
| Deuteranopia (no green cones) | #414B65 | 0.009 |
| Tritanopia (no blue cones) | #315356 | 0.040 |
| Achromatopsia (no color) | #4D4D4D | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E4E66
#3E4E66
oklch(42% 0.045 258.3)
- #5B4A31
#5B4A31
oklch(42% 0.045 76.7)
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 #3E4E66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.047
- Dusty Grape #545775 ΔE 0.049
- Charcoal #264653 ΔE 0.051
- Dusk #4E5481 ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.059
- Deep Teal #00555A ΔE 0.060
Use #3E4E66 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.