#056FEB
Closest named color: Cerulean Blue (#056EEE). oklch(56.5% 0.205 257.8), rgb(5, 111, 235).
Aa
White text reads best on this color (4.68:1).
About this color
#056FEB is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.205 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.005 away. White text reads best on it, at 4.68:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.205) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.47:1 |
| White text | 4.68:1 |
Values
| HEX | #056FEB |
| RGB | rgb(5, 111, 235) |
| HSL | hsl(212, 96%, 47%) |
| OKLCH | oklch(56.5% 0.205 257.8) |
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 #056FEB | 4.68:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #056FEB | 4.47:1 | AA large text | Lc 32.4 | Non-text elements, placeholder text |
| #056FEB text on white | 4.68:1 | AA | Lc 71.7 | Content text, not long reading |
| #056FEB text on black | 4.47:1 | AA large text | Lc -30.0 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFC
oklch(88.6% 0.051 258.4)
-
Step 300
300
#9BC3FC
oklch(80.9% 0.092 257.2)
-
Step 400
400
#63A1FB
oklch(70.7% 0.147 257.7)
-
Step 500
500
#3486F9
oklch(63.1% 0.189 257.8)
-
Step 600
600 (this color)
#056FEB
oklch(56.5% 0.205 257.8)
-
Step 700
700
#005BC4
oklch(49.2% 0.18 257.7)
-
Step 800
800
#004AA2
oklch(42.7% 0.156 257.7)
-
Step 900
900
#0E3F81
oklch(37.7% 0.123 257.8)
-
Step 950
950
#0A254C
oklch(26.9% 0.079 258.2)
#056FEB 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) | #007EEF | 0.038 |
| Deuteranopia (no green cones) | #006BE9 | 0.011 |
| Tritanopia (no blue cones) | #008EA2 | 0.155 |
| Achromatopsia (no color) | #747474 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #056FEB
#056FEB
oklch(56.5% 0.205 257.8)
- #9C6C00
#9C6C00
oklch(56.7% 0.118 78)
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 #056FEB, closest first.
No curated palette has a color within ΔE 0.04 of #056FEB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.005
- Royal Blue #4169E1 ΔE 0.034
- Bright Blue #0165FC ΔE 0.035
- Clear Blue #247AFD ΔE 0.041
- Azul #1D5DEC ΔE 0.042
- Neon Blue #4361EE ΔE 0.043
- Warm Blue #4B57DB ΔE 0.067
- Electric Blue #0652FF ΔE 0.071
Use #056FEB 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.