#4F72AA
Closest named color: Flat Blue (#3C73A8). oklch(55.1% 0.097 259.5), rgb(79, 114, 170).
Aa
White text reads best on this color (4.86:1).
About this color
#4F72AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.097 and its hue 259°. 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 4.86:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.31:1 |
| White text | 4.86:1 |
Values
| HEX | #4F72AA |
| RGB | rgb(79, 114, 170) |
| HSL | hsl(217, 37%, 49%) |
| OKLCH | oklch(55.1% 0.097 259.5) |
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 #4F72AA | 4.86:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #4F72AA | 4.31:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #4F72AA text on white | 4.86:1 | AA | Lc 73.6 | Content text, not long reading |
| #4F72AA 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B0C2DD
oklch(80.9% 0.043 258.4)
-
Step 400
400
#87A2CC
oklch(70.7% 0.069 259.1)
-
Step 500
500
#698ABF
oklch(63% 0.089 259.6)
-
Step 600
600 (this color)
#4F72AA
oklch(55.1% 0.097 259.5)
-
Step 700
700
#416193
oklch(49.1% 0.089 259)
-
Step 800
800
#364F78
oklch(42.7% 0.075 259.9)
-
Step 900
900
#2F4260
oklch(37.7% 0.057 259.3)
-
Step 950
950
#1C2738
oklch(27.1% 0.035 258.9)
#4F72AA 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) | #5C76AC | 0.021 |
| Deuteranopia (no green cones) | #516DA9 | 0.014 |
| Tritanopia (no blue cones) | #1F7E86 | 0.086 |
| Achromatopsia (no color) | #717171 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F72AA
#4F72AA
oklch(55.1% 0.097 259.5)
- #906B26
#906B26
oklch(55.2% 0.097 79.6)
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 #4F72AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.020
- French Blue #436BAD ΔE 0.027
- Dull Blue #49759C ΔE 0.027
- Muted Blue #3B719F ΔE 0.029
- Windows Blue #3778BF ΔE 0.037
- Cerulean #457B9D ΔE 0.038
- Stormy Blue #507B9C ΔE 0.039
- Steel Blue #4682B4 ΔE 0.044
Use #4F72AA 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.