Mid Blue #276AB3
Mid Blue is a medium-dark, moderately saturated blue with hex code #276AB3 and RGB rgb(39, 106, 179).
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White text reads best on this color (5.52:1).
About this color
#276AB3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.133 and its hue 253°. Its hue sits on the cool side of the wheel. It is the named color Mid Blue. White text reads best on it, at 5.52:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Mid Blue |
| Black text | 3.79:1 |
| White text | 5.52:1 |
Colors that go with Mid Blue
Matches found by rotating Mid Blue around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Mid Blue
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Mid Blue, closest first.
Similar named colors
The eight named colors closest to Mid Blue, with their ΔE distance.
- French Blue #436BAD ΔE 0.026
- Flat Blue #3C73A8 ΔE 0.039
- Muted Blue #3B719F ΔE 0.044
- Windows Blue #3778BF ΔE 0.045
- Nice Blue #107AB0 ΔE 0.047
- Ocean Blue #03719C ΔE 0.048
- Peacock Blue #016795 ΔE 0.053
- Dusky Blue #475F94 ΔE 0.056
More about Mid Blue
How to make Mid Blue
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 2 parts blue
- 1 part pink
- 1 part gray
Recipe result: #3468AD, a difference of ΔE 0.013 from Mid Blue. That is very close: most people will not see the difference.
Codes for Mid Blue in every format
| HEX | #276AB3 |
| RGB | rgb(39, 106, 179) |
| HSL | hsl(211, 64%, 43%) |
| OKLCH | oklch(52% 0.133 253.4) |
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 #276AB3 | 5.52:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #276AB3 | 3.79:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #276AB3 text on white | 5.52:1 | AA | Lc 77.2 | Fine for body text |
| #276AB3 text on black | 3.79:1 | AA large text | Lc -24.5 | Dividers and decoration only |
Shades and tints of Mid Blue
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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C9DBF1
oklch(88.5% 0.036 253.5)
-
Step 300
300
#A4C4EA
oklch(81% 0.064 253)
-
Step 400
400
#72A4E0
oklch(70.7% 0.103 253.6)
-
Step 500
500
#4B8CD7
oklch(63.1% 0.132 253.5)
-
Step 600
600
#2B74C4
oklch(55.5% 0.143 253.6)
-
Step 700
700 (this color)
#276AB3
oklch(52% 0.133 253.4)
-
Step 800
800
#1B5089
oklch(42.8% 0.11 253.2)
-
Step 900
900
#1C436E
oklch(37.8% 0.086 253)
-
Step 950
950
#122740
oklch(26.9% 0.054 254)
Mid Blue 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) | #476FB6 | 0.034 |
| Deuteranopia (no green cones) | #2F63B2 | 0.019 |
| Tritanopia (no blue cones) | #007B86 | 0.099 |
| Achromatopsia (no color) | #696969 | 0.133 |
Use Mid Blue 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.