#4B77AA
Closest named color: Flat Blue (#3C73A8). oklch(56% 0.094 253), rgb(75, 119, 170).
Aa
White text reads best on this color (4.64:1).
About this color
#4B77AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.094 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.020 away. White text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.51:1 |
| White text | 4.64:1 |
Values
| HEX | #4B77AA |
| RGB | rgb(75, 119, 170) |
| HSL | hsl(212, 39%, 48%) |
| OKLCH | oklch(56% 0.094 253) |
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 #4B77AA | 4.64:1 | AA | Lc -77.6 | Fine for body text |
| Black text on #4B77AA | 4.51:1 | AA | Lc 31.9 | Non-text elements, placeholder text |
| #4B77AA text on white | 4.64:1 | AA | Lc 72.1 | Content text, not long reading |
| #4B77AA text on black | 4.51:1 | AA | Lc -29.5 | 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
#E4EAF2
oklch(93.5% 0.013 255.5)
-
Step 200
200
#CFDAE9
oklch(88.5% 0.024 256.1)
-
Step 300
300
#AEC3DC
oklch(80.9% 0.042 252.9)
-
Step 400
400
#83A4CA
oklch(70.8% 0.067 252.3)
-
Step 500
500
#638CBD
oklch(63% 0.087 253.5)
-
Step 600
600 (this color)
#4B77AA
oklch(56% 0.094 253)
-
Step 700
700
#3B6391
oklch(49.1% 0.087 253)
-
Step 800
800
#315176
oklch(42.8% 0.073 253)
-
Step 900
900
#2B435F
oklch(37.6% 0.057 253)
-
Step 950
950
#1A2737
oklch(26.9% 0.035 254.1)
#4B77AA 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) | #627AAC | 0.030 |
| Deuteranopia (no green cones) | #5670A9 | 0.022 |
| Tritanopia (no blue cones) | #088389 | 0.083 |
| Achromatopsia (no color) | #747474 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B77AA
#4B77AA
oklch(56% 0.094 253)
- #966B2F
#966B2F
oklch(56% 0.094 72.7)
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 #4B77AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.020
- Dull Blue #49759C ΔE 0.022
- Cerulean #457B9D ΔE 0.027
- Stormy Blue #507B9C ΔE 0.028
- Muted Blue #3B719F ΔE 0.030
- Steel Blue #4682B4 ΔE 0.031
- Windows Blue #3778BF ΔE 0.036
- Nice Blue #107AB0 ΔE 0.038
Use #4B77AA 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.