#4E738F
Closest named color: Metallic Blue (#4F738E). oklch(53.9% 0.061 241.9), rgb(78, 115, 143).
Aa
White text reads best on this color (5.03:1).
About this color
#4E738F is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.061 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.002 away. White text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #4E738F |
| RGB | rgb(78, 115, 143) |
| HSL | hsl(206, 29%, 43%) |
| OKLCH | oklch(53.9% 0.061 241.9) |
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 #4E738F | 5.03:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #4E738F | 4.17:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #4E738F text on white | 5.03:1 | AA | Lc 74.7 | Content text, not long reading |
| #4E738F text on black | 4.17:1 | AA large text | Lc -27.0 | 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 600.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D1DBE2
oklch(88.6% 0.015 238)
-
Step 300
300
#B2C3D1
oklch(80.9% 0.027 242.8)
-
Step 400
400
#89A5BA
oklch(70.8% 0.044 240.7)
-
Step 500
500
#6B8EA9
oklch(63.1% 0.057 241.9)
-
Step 600
600 (this color)
#4E738F
oklch(53.9% 0.061 241.9)
-
Step 700
700
#43657E
oklch(49.1% 0.056 241.2)
-
Step 800
800
#385267
oklch(42.7% 0.047 243.5)
-
Step 900
900
#304454
oklch(37.7% 0.037 243.1)
-
Step 950
950
#1C2831
oklch(27% 0.024 241.1)
#4E738F 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) | #677390 | 0.032 |
| Deuteranopia (no green cones) | #5E6C8F | 0.027 |
| Tritanopia (no blue cones) | #337A7C | 0.050 |
| Achromatopsia (no color) | #6F6F6F | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E738F
#4E738F
oklch(53.9% 0.061 241.9)
- #886749
#886749
oklch(54% 0.061 63.3)
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 #4E738F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.002
- Dull Blue #49759C ΔE 0.020
- Cerulean #457B9D ΔE 0.027
- Stormy Blue #507B9C ΔE 0.028
- Muted Blue #3B719F ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.042
- Grey Blue #647D8E ΔE 0.043
- Sea Blue #047495 ΔE 0.047
Use #4E738F 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.