#276AAD
Closest named color: Mid Blue (#276AB3). oklch(51.6% 0.125 251.6), rgb(39, 106, 173).
Aa
White text reads best on this color (5.59:1).
About this color
#276AAD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.125 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.010 away. White text reads best on it, at 5.59:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.75:1 |
| White text | 5.59:1 |
Values
| HEX | #276AAD |
| RGB | rgb(39, 106, 173) |
| HSL | hsl(210, 63%, 42%) |
| OKLCH | oklch(51.6% 0.125 251.6) |
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 #276AAD | 5.59:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #276AAD | 3.75:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #276AAD text on white | 5.59:1 | AA | Lc 77.6 | Fine for body text |
| #276AAD text on black | 3.75:1 | AA large text | Lc -24.2 | 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
#CADBEF
oklch(88.5% 0.033 252.5)
-
Step 300
300
#A5C4E7
oklch(80.9% 0.06 251.7)
-
Step 400
400
#73A5DC
oklch(70.8% 0.097 251.6)
-
Step 500
500
#4C8DD2
oklch(63.1% 0.124 251.6)
-
Step 600
600
#2C76BF
oklch(55.7% 0.135 251.4)
-
Step 700
700 (this color)
#276AAD
oklch(51.6% 0.125 251.6)
-
Step 800
800
#1C5186
oklch(42.8% 0.104 251.6)
-
Step 900
900
#1D436B
oklch(37.6% 0.081 251.9)
-
Step 950
950
#12283F
oklch(27.1% 0.051 251.2)
#276AAD 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) | #4A6EB0 | 0.036 |
| Deuteranopia (no green cones) | #3562AC | 0.023 |
| Tritanopia (no blue cones) | #007A83 | 0.094 |
| Achromatopsia (no color) | #686868 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #276AAD
#276AAD
oklch(51.6% 0.125 251.6)
- #8F5B00
#8F5B00
oklch(51.6% 0.111 71.1)
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 #276AAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.010
- French Blue #436BAD ΔE 0.025
- Flat Blue #3C73A8 ΔE 0.035
- Muted Blue #3B719F ΔE 0.038
- Ocean Blue #03719C ΔE 0.040
- Peacock Blue #016795 ΔE 0.044
- Nice Blue #107AB0 ΔE 0.045
- Windows Blue #3778BF ΔE 0.049
Use #276AAD 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.