#286AD9
Closest named color: Royal Blue (#4169E1). oklch(54.7% 0.183 260.3), rgb(40, 106, 217).
Aa
White text reads best on this color (5.05:1).
About this color
#286AD9 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.183 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.024 away. White text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #286AD9 |
| RGB | rgb(40, 106, 217) |
| HSL | hsl(218, 70%, 50%) |
| OKLCH | oklch(54.7% 0.183 260.3) |
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 #286AD9 | 5.05:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #286AD9 | 4.15:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #286AD9 text on white | 5.05:1 | AA | Lc 74.4 | Content text, not long reading |
| #286AD9 text on black | 4.15:1 | AA large text | Lc -27.3 | 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 600.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF8
oklch(88.4% 0.046 260.7)
-
Step 300
300
#A2C2F6
oklch(80.9% 0.082 260)
-
Step 400
400
#6FA0F2
oklch(70.6% 0.132 260.2)
-
Step 500
500
#4986EE
oklch(63.1% 0.169 260.4)
-
Step 600
600 (this color)
#286AD9
oklch(54.7% 0.183 260.3)
-
Step 700
700
#1E5ABF
oklch(49.1% 0.17 260.4)
-
Step 800
800
#1B4A9B
oklch(42.7% 0.142 260.6)
-
Step 900
900
#1C3F7B
oklch(37.7% 0.11 260.4)
-
Step 950
950
#112548
oklch(26.9% 0.07 260.7)
#286AD9 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) | #1E77DD | 0.033 |
| Deuteranopia (no green cones) | #0067D7 | 0.019 |
| Tritanopia (no blue cones) | #008597 | 0.141 |
| Achromatopsia (no color) | #6F6F6F | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #286AD9
#286AD9
oklch(54.7% 0.183 260.3)
- #936800
#936800
oklch(54.8% 0.113 80.1)
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 #286AD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.024
- Cerulean Blue #056EEE ΔE 0.034
- Neon Blue #4361EE ΔE 0.044
- Azul #1D5DEC ΔE 0.045
- Warm Blue #4B57DB ΔE 0.051
- Bright Blue #0165FC ΔE 0.056
- Mid Blue #276AB3 ΔE 0.060
- Windows Blue #3778BF ΔE 0.061
Use #286AD9 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.