#286CB2
Closest named color: Mid Blue (#276AB3). oklch(52.4% 0.13 252.2), rgb(40, 108, 178).
Aa
White text reads best on this color (5.41:1).
About this color
#286CB2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.130 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.006 away. White text reads best on it, at 5.41:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #286CB2 |
| RGB | rgb(40, 108, 178) |
| HSL | hsl(210, 63%, 43%) |
| OKLCH | oklch(52.4% 0.13 252.2) |
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 #286CB2 | 5.41:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #286CB2 | 3.87:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #286CB2 text on white | 5.41:1 | AA | Lc 76.6 | Fine for body text |
| #286CB2 text on black | 3.87:1 | AA large text | Lc -25.1 | 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
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEF
oklch(88.5% 0.033 252.5)
-
Step 300
300
#A6C4E6
oklch(81% 0.058 251.8)
-
Step 400
400
#75A4D9
oklch(70.6% 0.093 252.1)
-
Step 500
500
#508DCF
oklch(63.1% 0.119 251.9)
-
Step 600
600 (this color)
#286CB2
oklch(52.4% 0.13 252.2)
-
Step 700
700
#2462A2
oklch(49% 0.12 252.3)
-
Step 800
800
#205184
oklch(42.8% 0.1 252)
-
Step 900
900
#204369
oklch(37.6% 0.077 252.2)
-
Step 950
950
#13283E
oklch(27.1% 0.049 251.1)
#286CB2 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) | #4B71B5 | 0.037 |
| Deuteranopia (no green cones) | #3564B1 | 0.023 |
| Tritanopia (no blue cones) | #007D86 | 0.098 |
| Achromatopsia (no color) | #6A6A6A | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #286CB2
#286CB2
oklch(52.4% 0.13 252.2)
- #915E00
#915E00
oklch(52.5% 0.112 72.6)
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 #286CB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.006
- French Blue #436BAD ΔE 0.023
- Flat Blue #3C73A8 ΔE 0.033
- Muted Blue #3B719F ΔE 0.039
- Windows Blue #3778BF ΔE 0.041
- Nice Blue #107AB0 ΔE 0.041
- Ocean Blue #03719C ΔE 0.044
- Peacock Blue #016795 ΔE 0.052
Use #286CB2 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.