#05688B
Closest named color: Peacock Blue (#016795). oklch(48.5% 0.096 230.7), rgb(5, 104, 139).
Aa
White text reads best on this color (6.25:1).
About this color
#05688B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.096 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.017 away. White text reads best on it, at 6.25:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.35:1 |
| White text | 6.25:1 |
Values
| HEX | #05688B |
| RGB | rgb(5, 104, 139) |
| HSL | hsl(196, 93%, 28%) |
| OKLCH | oklch(48.5% 0.096 230.7) |
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 #05688B | 6.25:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #05688B | 3.35:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #05688B text on white | 6.25:1 | AA | Lc 80.6 | Fine for body text |
| #05688B text on black | 3.35:1 | AA large text | Lc -21.2 | 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
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A3C7D9
oklch(80.9% 0.046 229.7)
-
Step 400
400
#6FAAC7
oklch(70.8% 0.075 230.5)
-
Step 500
500
#4494B8
oklch(63.2% 0.095 230.3)
-
Step 600
600
#1C7DA4
oklch(55.5% 0.103 230.9)
-
Step 700
700 (this color)
#05688B
oklch(48.5% 0.096 230.7)
-
Step 800
800
#105672
oklch(42.6% 0.079 230.8)
-
Step 900
900
#18475C
oklch(37.6% 0.062 231)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#05688B 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) | #56678D | 0.064 |
| Deuteranopia (no green cones) | #465B8A | 0.055 |
| Tritanopia (no blue cones) | #007274 | 0.056 |
| Achromatopsia (no color) | #606060 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05688B
#05688B
oklch(48.5% 0.096 230.7)
- #894D28
#894D28
oklch(48.4% 0.096 50.4)
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 #05688B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.017
- Denim #3B638C ΔE 0.034
- Ocean Blue #03719C ΔE 0.034
- Sea Blue #047495 ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.051
- Muted Blue #3B719F ΔE 0.054
- Dark Aqua #05696B ΔE 0.054
Use #05688B 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.