Metallic Blue #4F738E
Metallic Blue is a medium-dark, muted blue with hex code #4F738E and RGB rgb(79, 115, 142).
Aa
White text reads best on this color (5.02:1).
About this color
#4F738E is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.059 and its hue 242°. Its hue sits on the cool side of the wheel. It is the named color Metallic Blue. White text reads best on it, at 5.02:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Metallic Blue |
| Black text | 4.17:1 |
| White text | 5.02:1 |
Colors that go with Metallic Blue
Matches found by rotating Metallic Blue around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Metallic Blue
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Metallic Blue, closest first.
Similar named colors
The eight named colors closest to Metallic Blue, with their ΔE distance.
- Dull Blue #49759C ΔE 0.022
- Stormy Blue #507B9C ΔE 0.028
- Cerulean #457B9D ΔE 0.028
- Muted Blue #3B719F ΔE 0.035
- Grey Blue #647D8E ΔE 0.042
- Flat Blue #3C73A8 ΔE 0.044
- Battleship Gray #6C757D ΔE 0.046
- Sea Blue #047495 ΔE 0.048
More about Metallic Blue
How to make Metallic Blue
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 4 parts blue
- 3 parts white
- 1 part black
Recipe result: #4B7690, a difference of ΔE 0.008 from Metallic Blue. That is very close: most people will not see the difference.
Codes for Metallic Blue in every format
| HEX | #4F738E |
| RGB | rgb(79, 115, 142) |
| HSL | hsl(206, 29%, 43%) |
| OKLCH | oklch(53.9% 0.059 241.6) |
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 #4F738E | 5.02:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #4F738E | 4.17:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #4F738E text on white | 5.02:1 | AA | Lc 74.7 | Content text, not long reading |
| #4F738E text on black | 4.17:1 | AA large text | Lc -27.0 | Dividers and decoration only |
Shades and tints of Metallic Blue
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 600.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EBEF
oklch(93.7% 0.008 241.7)
-
Step 200
200
#D1DBE2
oklch(88.6% 0.015 238)
-
Step 300
300
#B2C3D1
oklch(80.9% 0.027 242.8)
-
Step 400
400
#8AA4B9
oklch(70.6% 0.042 242.7)
-
Step 500
500
#6C8EA8
oklch(63.1% 0.055 241.6)
-
Step 600
600 (this color)
#4F738E
oklch(53.9% 0.059 241.6)
-
Step 700
700
#44657D
oklch(49.1% 0.054 240.8)
-
Step 800
800
#385266
oklch(42.6% 0.046 242.2)
-
Step 900
900
#314453
oklch(37.7% 0.035 242.6)
-
Step 950
950
#1D2831
oklch(27.1% 0.023 243.4)
Metallic Blue 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) | #67738F | 0.031 |
| Deuteranopia (no green cones) | #5F6C8E | 0.027 |
| Tritanopia (no blue cones) | #367A7C | 0.048 |
| Achromatopsia (no color) | #6F6F6F | 0.059 |
Use Metallic Blue 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.