#064683
Closest named color: Twilight Blue (#0A437A). oklch(39.4% 0.118 253.3), rgb(6, 70, 131).
Aa
White text reads best on this color (9.49:1).
About this color
#064683 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.118 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.016 away. White text reads best on it, at 9.49:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #064683 |
| RGB | rgb(6, 70, 131) |
| HSL | hsl(209, 91%, 27%) |
| OKLCH | oklch(39.4% 0.118 253.3) |
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 #064683 | 9.49:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #064683 | 2.21:1 | Fails | Lc 12.6 | Not readable |
| #064683 text on white | 9.49:1 | AAA | Lc 91.4 | Preferred for body text |
| #064683 text on black | 2.21:1 | Fails | Lc -11.0 | Not readable |
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 900.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C3DCFA
oklch(88.6% 0.049 253.1)
-
Step 300
300
#98C4F9
oklch(80.8% 0.089 253.5)
-
Step 400
400
#5CA4F6
oklch(70.8% 0.141 253.1)
-
Step 500
500
#218AF3
oklch(63.2% 0.181 253.3)
-
Step 600
600
#0073D5
oklch(55.7% 0.173 253.3)
-
Step 700
700
#0060B4
oklch(49.1% 0.153 253.4)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900 (this color)
#064683
oklch(39.4% 0.118 253.3)
-
Step 950
950
#06274A
oklch(27.1% 0.075 253.4)
#064683 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) | #254B85 | 0.027 |
| Deuteranopia (no green cones) | #054182 | 0.015 |
| Tritanopia (no blue cones) | #00555E | 0.087 |
| Achromatopsia (no color) | #464646 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #064683
#064683
oklch(39.4% 0.118 253.3)
- #613E00
#613E00
oklch(39.5% 0.084 73.4)
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 #064683, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.016
- Cobalt #1E488F ΔE 0.026
- Light Navy #155084 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.043
- Dusk Blue #26538D ΔE 0.048
- Marine Blue #01386A ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.070
- Dark Grey Blue #29465B ΔE 0.071
Use #064683 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.