#4D758B
Closest named color: Metallic Blue (#4F738E). oklch(54.2% 0.057 233.3), rgb(77, 117, 139).
Aa
White text reads best on this color (4.96:1).
About this color
#4D758B is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.057 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.009 away. White text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.23:1 |
| White text | 4.96:1 |
Values
| HEX | #4D758B |
| RGB | rgb(77, 117, 139) |
| HSL | hsl(201, 29%, 42%) |
| OKLCH | oklch(54.2% 0.057 233.3) |
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 #4D758B | 4.96:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #4D758B | 4.23:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #4D758B text on white | 4.96:1 | AA | Lc 74.3 | Content text, not long reading |
| #4D758B text on black | 4.23:1 | AA large text | Lc -27.4 | 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
#D0DBE1
oklch(88.5% 0.015 231.2)
-
Step 300
300
#B1C4CF
oklch(80.9% 0.026 233.1)
-
Step 400
400
#88A5B6
oklch(70.6% 0.041 233.9)
-
Step 500
500
#6A8FA4
oklch(63% 0.052 233.5)
-
Step 600
600 (this color)
#4D758B
oklch(54.2% 0.057 233.3)
-
Step 700
700
#42667A
oklch(49.1% 0.052 233.6)
-
Step 800
800
#365363
oklch(42.6% 0.044 233.3)
-
Step 900
900
#2F4551
oklch(37.7% 0.034 232.7)
-
Step 950
950
#1C282F
oklch(26.9% 0.021 234.2)
#4D758B 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) | #6B748C | 0.039 |
| Deuteranopia (no green cones) | #626D8B | 0.033 |
| Tritanopia (no blue cones) | #337B7C | 0.043 |
| Achromatopsia (no color) | #707070 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D758B
#4D758B
oklch(54.2% 0.057 233.3)
- #8A6650
#8A6650
oklch(54.1% 0.057 52.6)
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 #4D758B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.009
- Dull Blue #49759C ΔE 0.027
- Cerulean #457B9D ΔE 0.029
- Stormy Blue #507B9C ΔE 0.029
- Grey Blue #647D8E ΔE 0.039
- Muted Blue #3B719F ΔE 0.041
- Battleship Gray #6C757D ΔE 0.044
- Ocean #017B92 ΔE 0.045
Use #4D758B 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.