#4C778B
Closest named color: Metallic Blue (#4F738E). oklch(54.6% 0.057 229), rgb(76, 119, 139).
Aa
White text reads best on this color (4.86:1).
About this color
#4C778B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.057 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.014 away. White text reads best on it, at 4.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.31:1 |
| White text | 4.86:1 |
Values
| HEX | #4C778B |
| RGB | rgb(76, 119, 139) |
| HSL | hsl(199, 29%, 42%) |
| OKLCH | oklch(54.6% 0.057 229) |
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 #4C778B | 4.86:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #4C778B | 4.31:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #4C778B text on white | 4.86:1 | AA | Lc 73.6 | Content text, not long reading |
| #4C778B text on black | 4.31:1 | AA large text | Lc -28.1 | 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
#B0C4CE
oklch(80.8% 0.026 229.2)
-
Step 400
400
#87A6B5
oklch(70.7% 0.041 228.8)
-
Step 500
500
#6890A3
oklch(63.1% 0.052 229)
-
Step 600
600 (this color)
#4C778B
oklch(54.6% 0.057 229)
-
Step 700
700
#406779
oklch(49.2% 0.053 228.9)
-
Step 800
800
#355462
oklch(42.8% 0.043 228.2)
-
Step 900
900
#2E4550
oklch(37.6% 0.034 229.3)
-
Step 950
950
#1B292F
oklch(27.1% 0.022 226.4)
#4C778B 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) | #6D758C | 0.042 |
| Deuteranopia (no green cones) | #646E8B | 0.038 |
| Tritanopia (no blue cones) | #317D7D | 0.041 |
| Achromatopsia (no color) | #717171 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C778B
#4C778B
oklch(54.6% 0.057 229)
- #8C6753
#8C6753
oklch(54.6% 0.057 49.5)
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 #4C778B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.014
- Cerulean #457B9D ΔE 0.028
- Stormy Blue #507B9C ΔE 0.028
- Dull Blue #49759C ΔE 0.030
- Grey Blue #647D8E ΔE 0.036
- Ocean #017B92 ΔE 0.043
- Battleship Gray #6C757D ΔE 0.043
- Muted Blue #3B719F ΔE 0.044
Use #4C778B 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.