#3E557D
Closest named color: YInMn Blue (#415A77). oklch(44.9% 0.072 261), rgb(62, 85, 125).
Aa
White text reads best on this color (7.49:1).
About this color
#3E557D is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.072 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.021 away. White text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #3E557D |
| RGB | rgb(62, 85, 125) |
| HSL | hsl(218, 34%, 37%) |
| OKLCH | oklch(44.9% 0.072 261) |
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 #3E557D | 7.49:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #3E557D | 2.80:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #3E557D text on white | 7.49:1 | AAA | Lc 86.0 | Fine for body text |
| #3E557D text on black | 2.80:1 | Fails | Lc -16.1 | Dividers and decoration only |
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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D1DAE9
oklch(88.6% 0.023 260.7)
-
Step 300
300
#B2C1DC
oklch(80.8% 0.042 262.3)
-
Step 400
400
#89A1CB
oklch(70.6% 0.068 261.5)
-
Step 500
500
#6C8ABE
oklch(63.1% 0.086 261.1)
-
Step 600
600
#5473AA
oklch(55.6% 0.093 261.4)
-
Step 700
700
#446092
oklch(49% 0.087 261.4)
-
Step 800
800 (this color)
#3E557D
oklch(44.9% 0.072 261)
-
Step 900
900
#30425F
oklch(37.7% 0.055 259.7)
-
Step 950
950
#1D2738
oklch(27.2% 0.035 260.8)
#3E557D 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) | #46587F | 0.015 |
| Deuteranopia (no green cones) | #3F527C | 0.009 |
| Tritanopia (no blue cones) | #235E63 | 0.065 |
| Achromatopsia (no color) | #555555 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E557D
#3E557D
oklch(44.9% 0.072 261)
- #695121
#695121
oklch(45% 0.072 82.3)
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 #3E557D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.021
- Dusk #4E5481 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.025
- Dusty Grape #545775 ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.035
- Twilight #4E518B ΔE 0.036
- Dusk Blue #26538D ΔE 0.038
- Denim #3B638C ΔE 0.043
Use #3E557D 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.