#4778A8
Closest named color: Dull Blue (#49759C). oklch(55.9% 0.092 249.3), rgb(71, 120, 168).
Aa
White text reads best on this color (4.64:1).
About this color
#4778A8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.092 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.019 away. White text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.51:1 |
| White text | 4.64:1 |
Values
| HEX | #4778A8 |
| RGB | rgb(71, 120, 168) |
| HSL | hsl(210, 41%, 47%) |
| OKLCH | oklch(55.9% 0.092 249.3) |
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 #4778A8 | 4.64:1 | AA | Lc -77.6 | Fine for body text |
| Black text on #4778A8 | 4.51:1 | AA | Lc 32.0 | Non-text elements, placeholder text |
| #4778A8 text on white | 4.64:1 | AA | Lc 72.1 | Content text, not long reading |
| #4778A8 text on black | 4.51:1 | AA | Lc -29.6 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE8
oklch(88.6% 0.023 248.1)
-
Step 300
300
#ADC3DB
oklch(80.8% 0.042 250.6)
-
Step 400
400
#81A4C9
oklch(70.6% 0.067 250.2)
-
Step 500
500
#608EBB
oklch(63.2% 0.085 248.8)
-
Step 600
600 (this color)
#4778A8
oklch(55.9% 0.092 249.3)
-
Step 700
700
#37648F
oklch(49.1% 0.085 249)
-
Step 800
800
#2E5274
oklch(42.7% 0.07 248.5)
-
Step 900
900
#2A445E
oklch(37.8% 0.055 249.5)
-
Step 950
950
#192837
oklch(27.1% 0.035 249.2)
#4778A8 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) | #647AAA | 0.035 |
| Deuteranopia (no green cones) | #5770A7 | 0.027 |
| Tritanopia (no blue cones) | #008389 | 0.077 |
| Achromatopsia (no color) | #747474 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4778A8
#4778A8
oklch(55.9% 0.092 249.3)
- #976A32
#976A32
oklch(56% 0.092 69.8)
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 #4778A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.019
- Flat Blue #3C73A8 ΔE 0.019
- Cerulean #457B9D ΔE 0.022
- Stormy Blue #507B9C ΔE 0.025
- Muted Blue #3B719F ΔE 0.027
- Steel Blue #4682B4 ΔE 0.030
- Nice Blue #107AB0 ΔE 0.034
- Windows Blue #3778BF ΔE 0.038
Use #4778A8 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.