#276BCE
Closest named color: Royal Blue (#4169E1). oklch(54.1% 0.168 258.4), rgb(39, 107, 206).
Aa
White text reads best on this color (5.14:1).
About this color
#276BCE is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.168 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.037 away. White text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.08:1 |
| White text | 5.14:1 |
Values
| HEX | #276BCE |
| RGB | rgb(39, 107, 206) |
| HSL | hsl(216, 68%, 48%) |
| OKLCH | oklch(54.1% 0.168 258.4) |
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 #276BCE | 5.14:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #276BCE | 4.08:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #276BCE text on white | 5.14:1 | AA | Lc 75.0 | Content text, not long reading |
| #276BCE text on black | 4.08:1 | AA large text | Lc -26.8 | 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 600.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C9DBF5
oklch(88.6% 0.041 257.5)
-
Step 300
300
#A3C2F2
oklch(80.8% 0.076 259)
-
Step 400
400
#71A2EB
oklch(70.8% 0.12 258.1)
-
Step 500
500
#4A88E5
oklch(63% 0.155 258.4)
-
Step 600
600 (this color)
#276BCE
oklch(54.1% 0.168 258.4)
-
Step 700
700
#1F5DB7
oklch(49.1% 0.156 258.5)
-
Step 800
800
#1B4C94
oklch(42.6% 0.13 258.5)
-
Step 900
900
#1D4076
oklch(37.6% 0.101 258.9)
-
Step 950
950
#122645
oklch(27% 0.064 258.9)
#276BCE 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) | #3275D2 | 0.029 |
| Deuteranopia (no green cones) | #0066CC | 0.022 |
| Tritanopia (no blue cones) | #008392 | 0.130 |
| Achromatopsia (no color) | #6D6D6D | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #276BCE
#276BCE
oklch(54.1% 0.168 258.4)
- #926500
#926500
oklch(54% 0.113 78.1)
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 #276BCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.037
- Mid Blue #276AB3 ΔE 0.042
- Windows Blue #3778BF ΔE 0.048
- Cerulean Blue #056EEE ΔE 0.049
- French Blue #436BAD ΔE 0.055
- Warm Blue #4B57DB ΔE 0.059
- Azul #1D5DEC ΔE 0.059
- Neon Blue #4361EE ΔE 0.060
Use #276BCE 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.