#056DB4
Closest named color: Mid Blue (#276AB3). oklch(52.2% 0.138 247.9), rgb(5, 109, 180).
Aa
White text reads best on this color (5.45:1).
About this color
#056DB4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.138 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.014 away. White text reads best on it, at 5.45:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #056DB4 |
| RGB | rgb(5, 109, 180) |
| HSL | hsl(204, 95%, 36%) |
| OKLCH | oklch(52.2% 0.138 247.9) |
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 #056DB4 | 5.45:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #056DB4 | 3.85:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #056DB4 text on white | 5.45:1 | AA | Lc 76.6 | Fine for body text |
| #056DB4 text on black | 3.85:1 | AA large text | Lc -25.2 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF1
oklch(88.5% 0.037 248.2)
-
Step 300
300
#9FC5EA
oklch(80.9% 0.066 248)
-
Step 400
400
#68A6E0
oklch(70.7% 0.107 248)
-
Step 500
500
#398FD7
oklch(63.2% 0.136 247.4)
-
Step 600
600
#0277C5
oklch(55.6% 0.149 248)
-
Step 700
700 (this color)
#056DB4
oklch(52.2% 0.138 247.9)
-
Step 800
800
#00528A
oklch(42.8% 0.115 247.8)
-
Step 900
900
#10446E
oklch(37.6% 0.089 247.9)
-
Step 950
950
#0C2840
oklch(26.9% 0.056 247.6)
#056DB4 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) | #4A71B7 | 0.048 |
| Deuteranopia (no green cones) | #2F63B3 | 0.030 |
| Tritanopia (no blue cones) | #007E88 | 0.097 |
| Achromatopsia (no color) | #696969 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #056DB4
#056DB4
oklch(52.2% 0.138 247.9)
- #945A00
#945A00
oklch(52.1% 0.115 67.4)
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 #056DB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.014
- French Blue #436BAD ΔE 0.037
- Nice Blue #107AB0 ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.042
- Ocean Blue #03719C ΔE 0.043
- Windows Blue #3778BF ΔE 0.046
- Muted Blue #3B719F ΔE 0.047
- Peacock Blue #016795 ΔE 0.050
Use #056DB4 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.