#05709A
Closest named color: Ocean Blue (#03719C). oklch(51.4% 0.106 233.7), rgb(5, 112, 154).
Aa
White text reads best on this color (5.53:1).
About this color
#05709A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.106 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.004 away. White text reads best on it, at 5.53:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #05709A |
| RGB | rgb(5, 112, 154) |
| HSL | hsl(197, 94%, 31%) |
| OKLCH | oklch(51.4% 0.106 233.7) |
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 #05709A | 5.53:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #05709A | 3.79:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #05709A text on white | 5.53:1 | AA | Lc 77.1 | Fine for body text |
| #05709A text on black | 3.79:1 | AA large text | Lc -24.6 | 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 700.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE9
oklch(88.6% 0.028 232.7)
-
Step 300
300
#A1C7DD
oklch(80.9% 0.051 233.6)
-
Step 400
400
#6BA9CC
oklch(70.6% 0.082 234.4)
-
Step 500
500
#3D93BF
oklch(63% 0.105 234.3)
-
Step 600
600
#0A7DAB
oklch(55.6% 0.114 233.7)
-
Step 700
700 (this color)
#05709A
oklch(51.4% 0.106 233.7)
-
Step 800
800
#045677
oklch(42.7% 0.087 233.6)
-
Step 900
900
#134760
oklch(37.7% 0.068 234)
-
Step 950
950
#0D2A38
oklch(27% 0.043 232.5)
#05709A 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) | #5B6F9C | 0.065 |
| Deuteranopia (no green cones) | #496399 | 0.054 |
| Tritanopia (no blue cones) | #007B7E | 0.064 |
| Achromatopsia (no color) | #686868 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05709A
#05709A
oklch(51.4% 0.106 233.7)
- #955425
#955425
oklch(51.3% 0.105 53.5)
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 #05709A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.004
- Sea Blue #047495 ΔE 0.016
- Peacock Blue #016795 ΔE 0.027
- Muted Blue #3B719F ΔE 0.032
- Ocean #017B92 ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.040
- Nice Blue #107AB0 ΔE 0.042
- Denim #3B638C ΔE 0.044
Use #05709A 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.