bluecool
Ocean Blue #4F42B5
A vivid deep blue, like open ocean water.
Use cases: Marine brands · Deep accents
Color values
| Format | Value | |
|---|---|---|
| HEX | #4F42B5 | |
| RGB | rgb(79, 66, 181) | |
| HSL | hsl(247, 47%, 48%) | |
| HSV | hsv(247, 64%, 71%) | |
| CMYK | cmyk(56.4%, 63.5%, 0%, 29%) | |
| XYZ | xyz(13.5106, 8.894, 44.7119) | |
| CIE-LAB | lab(35.8, 37.8, -59.4) | |
| Luminance | 0.089 (WCAG relative) |
/* Ocean Blue */
color: #4f42b5;
background-color: #4f42b5;
Shade scale
Perceptual 50–950 scale, interpolated in CIE-LAB. Step 500 is the base color. Edit in the shade generator →
Shades (toward black)
#473ba3 #3f3591 #372e7f #2f286d #28215b #201a48 #181436 #100d24 #080712 #000000
Tints (toward white)
#6155bc #7268c4 #847bcb #958ed3 #a7a1da #b9b3e1 #cac6e9 #dcd9f0 #edecf8 #ffffff
Tones (toward gray)
#5448b0 #594eaa #5e55a5 #635ba0 #68619b #6c6795 #716d90 #76748b #7b7a85 #808080
Color harmonies
Complementary
Edit in generator →#4F42B5
#A8B542
#4f42b5 #a8b542
Analogous
Edit in generator →#426EB5
#4F42B5
#8842B5
#426eb5 #4f42b5 #8842b5
Triadic
Edit in generator →#4F42B5
#B54F42
#42B54F
#4f42b5 #b54f42 #42b54f
Tetradic
Edit in generator →#4F42B5
#B5426E
#A8B542
#42B588
#4f42b5 #b5426e #a8b542 #42b588
Split Complementary
Edit in generator →#4F42B5
#B58842
#6EB542
#4f42b5 #b58842 #6eb542
Monochromatic
Edit in generator →#28215B
#3B3288
#4F42B5
#766BC9
#9F98D9
#28215b #3b3288 #4f42b5 #766bc9 #9f98d9
Accessibility & contrast
7.56
#4F42B5 on #FFFFFF
AA text ✓AA large ✓AAA text ✓UI 3:1 ✓
2.78
#4F42B5 on #000000
AA text ✗AA large ✗AAA text ✗UI 3:1 ✗
Best text on ocean blue
7.56
#FFFFFF text
WCAG 2.1: AA needs ≥4.5:1 for normal text, ≥3:1 for large text and UI components; AAA needs ≥7:1 / ≥4.5:1.
Color blindness preview
Simulation using the Machado et al. (2009) physiological model, severity 1.0. This is an approximation of perception — not a medical assessment.
Closest named colors
Nearest matches by CIEDE2000 perceptual distance (ΔE₀₀).
| Color | Name | ΔE₀₀ |
|---|---|---|
| Slate Blue #6A5ACD | 8.49 | |
| Cobalt #0047AB | 8.98 | |
| Royal Purple #7851A9 | 9.38 | |
| Sapphire #0F52BA | 9.84 | |
| Blue #0000FF | 11.32 | |
| Charcoal #36454F | 13.28 |
Related colors
Palettes with ocean blue
Values computed from the sRGB color model. CMYK is the naive sRGB conversion without an ICC profile. RGB percentages may differ between color-managed applications.