#05759D
Closest named color: Ocean Blue (#03719C). oklch(52.8% 0.106 231.4), rgb(5, 117, 157).
Aa
White text reads best on this color (5.20:1).
About this color
#05759D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.106 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.012 away. White text reads best on it, at 5.20:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #05759D |
| RGB | rgb(5, 117, 157) |
| HSL | hsl(196, 94%, 32%) |
| OKLCH | oklch(52.8% 0.106 231.4) |
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 #05759D | 5.20:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #05759D | 4.03:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #05759D text on white | 5.20:1 | AA | Lc 75.2 | Fine for body text |
| #05759D text on black | 4.03:1 | AA large text | Lc -26.5 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A2C7DA
oklch(80.9% 0.048 230.4)
-
Step 400
400
#6EAAC8
oklch(70.8% 0.076 231)
-
Step 500
500
#4294BA
oklch(63.2% 0.097 231.2)
-
Step 600
600 (this color)
#05759D
oklch(52.8% 0.106 231.4)
-
Step 700
700
#046A8E
oklch(49.2% 0.098 230.9)
-
Step 800
800
#0D5673
oklch(42.6% 0.081 231.3)
-
Step 900
900
#16475D
oklch(37.6% 0.064 231.5)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#05759D 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) | #61749F | 0.070 |
| Deuteranopia (no green cones) | #4E679C | 0.058 |
| Tritanopia (no blue cones) | #008083 | 0.061 |
| Achromatopsia (no color) | #6D6D6D | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05759D
#05759D
oklch(52.8% 0.106 231.4)
- #9A572C
#9A572C
oklch(52.7% 0.105 51.2)
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 #05759D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.012
- Sea Blue #047495 ΔE 0.013
- Ocean #017B92 ΔE 0.029
- Muted Blue #3B719F ΔE 0.029
- Nice Blue #107AB0 ΔE 0.032
- Flat Blue #3C73A8 ΔE 0.036
- Dull Blue #49759C ΔE 0.041
- Peacock Blue #016795 ΔE 0.042
Use #05759D 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.