#286FBE
Closest named color: Mid Blue (#276AB3). oklch(53.9% 0.142 253.9), rgb(40, 111, 190).
Aa
White text reads best on this color (5.11:1).
About this color
#286FBE is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.142 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.021 away. White text reads best on it, at 5.11:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 4.10:1 |
| White text | 5.11:1 |
Values
| HEX | #286FBE |
| RGB | rgb(40, 111, 190) |
| HSL | hsl(212, 65%, 45%) |
| OKLCH | oklch(53.9% 0.142 253.9) |
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 #286FBE | 5.11:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #286FBE | 4.10:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #286FBE text on white | 5.11:1 | AA | Lc 74.9 | Content text, not long reading |
| #286FBE text on black | 4.10:1 | AA large text | Lc -26.9 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#C9DBF1
oklch(88.5% 0.036 253.5)
-
Step 300
300
#A5C3EA
oklch(80.8% 0.064 255.1)
-
Step 400
400
#73A4DF
oklch(70.8% 0.102 253.7)
-
Step 500
500
#4D8CD6
oklch(63.2% 0.13 253.8)
-
Step 600
600 (this color)
#286FBE
oklch(53.9% 0.142 253.9)
-
Step 700
700
#2061A9
oklch(49.1% 0.132 254)
-
Step 800
800
#1D5089
oklch(42.8% 0.109 253.8)
-
Step 900
900
#1E436D
oklch(37.8% 0.084 253.4)
-
Step 950
950
#122740
oklch(26.9% 0.054 254)
#286FBE 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) | #4875C1 | 0.034 |
| Deuteranopia (no green cones) | #2E68BC | 0.019 |
| Tritanopia (no blue cones) | #00828D | 0.108 |
| Achromatopsia (no color) | #6E6E6E | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #286FBE
#286FBE
oklch(53.9% 0.142 253.9)
- #956200
#956200
oklch(53.8% 0.114 73.7)
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 #286FBE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.021
- Windows Blue #3778BF ΔE 0.029
- French Blue #436BAD ΔE 0.032
- Flat Blue #3C73A8 ΔE 0.041
- Nice Blue #107AB0 ΔE 0.042
- Muted Blue #3B719F ΔE 0.052
- Ocean Blue #03719C ΔE 0.059
- Royal Blue #4169E1 ΔE 0.062
Use #286FBE 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.