#276CAF
Closest named color: Mid Blue (#276AB3). oklch(52.2% 0.126 251.1), rgb(39, 108, 175).
Aa
White text reads best on this color (5.45:1).
About this color
#276CAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.126 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.009 away. White text reads best on it, at 5.45:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.85:1 |
| White text | 5.45:1 |
Values
| HEX | #276CAF |
| RGB | rgb(39, 108, 175) |
| HSL | hsl(210, 64%, 42%) |
| OKLCH | oklch(52.2% 0.126 251.1) |
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 #276CAF | 5.45:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #276CAF | 3.85:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #276CAF text on white | 5.45:1 | AA | Lc 76.8 | Fine for body text |
| #276CAF text on black | 3.85:1 | AA large text | Lc -24.9 | 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 700.
-
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
#C9DBEF
oklch(88.4% 0.034 251)
-
Step 300
300
#A4C4E7
oklch(80.9% 0.061 250.9)
-
Step 400
400
#72A5DC
oklch(70.8% 0.098 251.1)
-
Step 500
500
#4B8DD2
oklch(63.1% 0.125 251.3)
-
Step 600
600
#2A76BF
oklch(55.6% 0.135 251)
-
Step 700
700 (this color)
#276CAF
oklch(52.2% 0.126 251.1)
-
Step 800
800
#1A5186
oklch(42.8% 0.105 251.1)
-
Step 900
900
#1C436B
oklch(37.6% 0.082 251.4)
-
Step 950
950
#12283F
oklch(27.1% 0.051 251.2)
#276CAF 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) | #4C70B2 | 0.037 |
| Deuteranopia (no green cones) | #3764AE | 0.023 |
| Tritanopia (no blue cones) | #007C85 | 0.094 |
| Achromatopsia (no color) | #696969 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #276CAF
#276CAF
oklch(52.2% 0.126 251.1)
- #915C00
#915C00
oklch(52.1% 0.112 70.8)
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 #276CAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.009
- French Blue #436BAD ΔE 0.023
- Flat Blue #3C73A8 ΔE 0.031
- Muted Blue #3B719F ΔE 0.036
- Ocean Blue #03719C ΔE 0.040
- Nice Blue #107AB0 ΔE 0.040
- Windows Blue #3778BF ΔE 0.043
- Peacock Blue #016795 ΔE 0.047
Use #276CAF 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.