#4E738C
Closest named color: Metallic Blue (#4F738E). oklch(53.8% 0.057 238.8), rgb(78, 115, 140).
Aa
White text reads best on this color (5.05:1).
About this color
#4E738C is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.057 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.004 away. White text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #4E738C |
| RGB | rgb(78, 115, 140) |
| HSL | hsl(204, 28%, 43%) |
| OKLCH | oklch(53.8% 0.057 238.8) |
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 #4E738C | 5.05:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #4E738C | 4.15:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #4E738C text on white | 5.05:1 | AA | Lc 74.8 | Content text, not long reading |
| #4E738C text on black | 4.15:1 | AA large text | Lc -26.9 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D1DBE2
oklch(88.6% 0.015 238)
-
Step 300
300
#B2C3D0
oklch(80.8% 0.026 240.7)
-
Step 400
400
#89A5B8
oklch(70.7% 0.042 237.9)
-
Step 500
500
#6C8EA6
oklch(63% 0.053 239.4)
-
Step 600
600 (this color)
#4E738C
oklch(53.8% 0.057 238.8)
-
Step 700
700
#43657C
oklch(49% 0.054 238.9)
-
Step 800
800
#385365
oklch(42.8% 0.044 238.3)
-
Step 900
900
#304452
oklch(37.6% 0.035 239.4)
-
Step 950
950
#1D2830
oklch(27% 0.021 240.1)
#4E738C 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) | #68728D | 0.034 |
| Deuteranopia (no green cones) | #606C8C | 0.029 |
| Tritanopia (no blue cones) | #35797B | 0.045 |
| Achromatopsia (no color) | #6F6F6F | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E738C
#4E738C
oklch(53.8% 0.057 238.8)
- #88664C
#88664C
oklch(53.8% 0.058 58.5)
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 #4E738C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.004
- Dull Blue #49759C ΔE 0.025
- Cerulean #457B9D ΔE 0.030
- Stormy Blue #507B9C ΔE 0.030
- Muted Blue #3B719F ΔE 0.037
- Grey Blue #647D8E ΔE 0.043
- Battleship Gray #6C757D ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.047
Use #4E738C 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.