#2866BA
Closest named color: Mid Blue (#276AB3). oklch(51.6% 0.147 257.2), rgb(40, 102, 186).
Aa
White text reads best on this color (5.67:1).
About this color
#2866BA is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.147 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.017 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.69:1 |
| White text | 5.67:1 |
Values
| HEX | #2866BA |
| RGB | rgb(40, 102, 186) |
| HSL | hsl(215, 65%, 44%) |
| OKLCH | oklch(51.6% 0.147 257.2) |
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 #2866BA | 5.67:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #2866BA | 3.69:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #2866BA text on white | 5.67:1 | AA | Lc 78.0 | Fine for body text |
| #2866BA text on black | 3.69:1 | AA large text | Lc -23.8 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DBF4
oklch(88.6% 0.04 256.6)
-
Step 300
300
#A4C3EF
oklch(81% 0.071 257.1)
-
Step 400
400
#72A2E7
oklch(70.6% 0.114 257.4)
-
Step 500
500
#4C89E0
oklch(63% 0.146 257.5)
-
Step 600
600
#2E71CD
oklch(55.5% 0.158 257.4)
-
Step 700
700 (this color)
#2866BA
oklch(51.6% 0.147 257.2)
-
Step 800
800
#1D4E90
oklch(42.8% 0.121 257.1)
-
Step 900
900
#1D4173
oklch(37.7% 0.095 257.2)
-
Step 950
950
#122643
oklch(26.9% 0.06 257.7)
#2866BA 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) | #3A6EBD | 0.029 |
| Deuteranopia (no green cones) | #1A61B8 | 0.018 |
| Tritanopia (no blue cones) | #007A87 | 0.112 |
| Achromatopsia (no color) | #676767 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2866BA
#2866BA
oklch(51.6% 0.147 257.2)
- #8A5E00
#8A5E00
oklch(51.6% 0.108 77)
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 #2866BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.017
- French Blue #436BAD ΔE 0.036
- Windows Blue #3778BF ΔE 0.053
- Flat Blue #3C73A8 ΔE 0.055
- Muted Blue #3B719F ΔE 0.061
- Nice Blue #107AB0 ΔE 0.061
- Dusky Blue #475F94 ΔE 0.064
- Ocean Blue #03719C ΔE 0.064
Use #2866BA 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.