#05658B
Closest named color: Peacock Blue (#016795). oklch(47.7% 0.098 233.6), rgb(5, 101, 139).
Aa
White text reads best on this color (6.47:1).
About this color
#05658B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.098 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.016 away. White text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #05658B |
| RGB | rgb(5, 101, 139) |
| HSL | hsl(197, 93%, 28%) |
| OKLCH | oklch(47.7% 0.098 233.6) |
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 #05658B | 6.47:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #05658B | 3.24:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #05658B text on white | 6.47:1 | AA | Lc 81.6 | Fine for body text |
| #05658B text on black | 3.24:1 | AA large text | Lc -20.3 | 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
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A3C6DB
oklch(80.8% 0.048 234.5)
-
Step 400
400
#70A9C9
oklch(70.7% 0.076 233.9)
-
Step 500
500
#4593BB
oklch(63.1% 0.097 233.6)
-
Step 600
600
#1F7DA7
oklch(55.7% 0.105 233.3)
-
Step 700
700 (this color)
#05658B
oklch(47.7% 0.098 233.6)
-
Step 800
800
#125674
oklch(42.8% 0.081 233)
-
Step 900
900
#19475E
oklch(37.8% 0.063 233.8)
-
Step 950
950
#102A37
oklch(27.1% 0.04 232.6)
#05658B 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) | #52648D | 0.061 |
| Deuteranopia (no green cones) | #42598A | 0.051 |
| Tritanopia (no blue cones) | #006F72 | 0.059 |
| Achromatopsia (no color) | #5E5E5E | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05658B
#05658B
oklch(47.7% 0.098 233.6)
- #874C21
#874C21
oklch(47.9% 0.098 53.8)
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 #05658B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.016
- Denim #3B638C ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.035
- Ocean Blue #03719C ΔE 0.041
- Sea Blue #047495 ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.046
- YInMn Blue #415A77 ΔE 0.051
- Deep Sea Blue #015482 ΔE 0.052
Use #05658B 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.