#4073A0
Closest named color: Muted Blue (#3B719F). oklch(54% 0.09 247), rgb(64, 115, 160).
Aa
White text reads best on this color (5.02:1).
About this color
#4073A0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.090 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.008 away. White text reads best on it, at 5.02:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 4.17:1 |
| White text | 5.02:1 |
Values
| HEX | #4073A0 |
| RGB | rgb(64, 115, 160) |
| HSL | hsl(208, 43%, 44%) |
| OKLCH | oklch(54% 0.09 247) |
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 #4073A0 | 5.02:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #4073A0 | 4.17:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #4073A0 text on white | 5.02:1 | AA | Lc 74.6 | Content text, not long reading |
| #4073A0 text on black | 4.17:1 | AA large text | Lc -27.1 | 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
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE8
oklch(88.6% 0.023 248.1)
-
Step 300
300
#ACC4DA
oklch(80.9% 0.041 246)
-
Step 400
400
#80A5C7
oklch(70.7% 0.064 246.6)
-
Step 500
500
#5F8EB9
oklch(63% 0.083 247.1)
-
Step 600
600 (this color)
#4073A0
oklch(54% 0.09 247)
-
Step 700
700
#36658E
oklch(49.2% 0.084 246.8)
-
Step 800
800
#2D5273
oklch(42.6% 0.07 247.2)
-
Step 900
900
#29445D
oklch(37.7% 0.054 247.6)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#4073A0 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) | #6074A2 | 0.038 |
| Deuteranopia (no green cones) | #536B9F | 0.029 |
| Tritanopia (no blue cones) | #007E83 | 0.073 |
| Achromatopsia (no color) | #6F6F6F | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4073A0
#4073A0
oklch(54% 0.09 247)
- #916430
#916430
oklch(54% 0.09 67.8)
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 #4073A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.008
- Flat Blue #3C73A8 ΔE 0.013
- Dull Blue #49759C ΔE 0.014
- Cerulean #457B9D ΔE 0.027
- Metallic Blue #4F738E ΔE 0.032
- Stormy Blue #507B9C ΔE 0.033
- French Blue #436BAD ΔE 0.035
- Nice Blue #107AB0 ΔE 0.035
Use #4073A0 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.