#3E557C
Closest named color: YInMn Blue (#415A77). oklch(44.9% 0.07 260.6), rgb(62, 85, 124).
Aa
White text reads best on this color (7.51:1).
About this color
#3E557C is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.070 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.020 away. White text reads best on it, at 7.51:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #3E557C |
| RGB | rgb(62, 85, 124) |
| HSL | hsl(218, 33%, 36%) |
| OKLCH | oklch(44.9% 0.07 260.6) |
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 #3E557C | 7.51:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #3E557C | 2.79:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #3E557C text on white | 7.51:1 | AAA | Lc 86.0 | Fine for body text |
| #3E557C text on black | 2.79:1 | Fails | Lc -16.0 | 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
#B2C2DC
oklch(81% 0.041 260.1)
-
Step 400
400
#89A2CA
oklch(70.8% 0.065 259.7)
-
Step 500
500
#6C8ABD
oklch(63.1% 0.085 260.8)
-
Step 600
600
#5473A9
oklch(55.5% 0.092 261)
-
Step 700
700
#446191
oklch(49.2% 0.085 260.1)
-
Step 800
800 (this color)
#3E557C
oklch(44.9% 0.07 260.6)
-
Step 900
900
#31425F
oklch(37.8% 0.055 260.8)
-
Step 950
950
#1D2738
oklch(27.2% 0.035 260.8)
#3E557C 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) | #46587E | 0.015 |
| Deuteranopia (no green cones) | #3F527B | 0.009 |
| Tritanopia (no blue cones) | #245D63 | 0.062 |
| Achromatopsia (no color) | #555555 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E557C
#3E557C
oklch(44.9% 0.07 260.6)
- #695023
#695023
oklch(44.8% 0.07 80)
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 #3E557C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.020
- Dusk #4E5481 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.025
- Dusty Grape #545775 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.036
- Twilight #4E518B ΔE 0.037
- Dusk Blue #26538D ΔE 0.039
- Denim #3B638C ΔE 0.044
Use #3E557C 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.