#2F73A3
Closest named color: Muted Blue (#3B719F). oklch(53.5% 0.102 242.8), rgb(47, 115, 163).
Aa
White text reads best on this color (5.11:1).
About this color
#2F73A3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.102 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.011 away. White text reads best on it, at 5.11:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 4.10:1 |
| White text | 5.11:1 |
Values
| HEX | #2F73A3 |
| RGB | rgb(47, 115, 163) |
| HSL | hsl(205, 55%, 41%) |
| OKLCH | oklch(53.5% 0.102 242.8) |
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 #2F73A3 | 5.11:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #2F73A3 | 4.10:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #2F73A3 text on white | 5.11:1 | AA | Lc 75.0 | Fine for body text |
| #2F73A3 text on black | 4.10:1 | AA large text | Lc -26.7 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CBDCE9
oklch(88.6% 0.026 240.7)
-
Step 300
300
#A8C5DC
oklch(80.9% 0.045 242.1)
-
Step 400
400
#78A6CB
oklch(70.6% 0.074 243.3)
-
Step 500
500
#5490BE
oklch(63.2% 0.094 243.2)
-
Step 600
600 (this color)
#2F73A3
oklch(53.5% 0.102 242.8)
-
Step 700
700
#286692
oklch(49.1% 0.095 243.1)
-
Step 800
800
#235376
oklch(42.6% 0.078 243.2)
-
Step 900
900
#22455F
oklch(37.7% 0.06 242.8)
-
Step 950
950
#152938
oklch(27.2% 0.038 242.4)
#2F73A3 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) | #5D74A5 | 0.048 |
| Deuteranopia (no green cones) | #4D69A2 | 0.037 |
| Tritanopia (no blue cones) | #007F84 | 0.072 |
| Achromatopsia (no color) | #6E6E6E | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F73A3
#2F73A3
oklch(53.5% 0.102 242.8)
- #965E26
#965E26
oklch(53.4% 0.101 62.2)
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 #2F73A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.011
- Flat Blue #3C73A8 ΔE 0.014
- Ocean Blue #03719C ΔE 0.024
- Nice Blue #107AB0 ΔE 0.026
- Dull Blue #49759C ΔE 0.027
- Sea Blue #047495 ΔE 0.032
- French Blue #436BAD ΔE 0.034
- Cerulean #457B9D ΔE 0.035
Use #2F73A3 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.