#276AD8
Closest named color: Royal Blue (#4169E1). oklch(54.6% 0.182 260), rgb(39, 106, 216).
Aa
White text reads best on this color (5.07:1).
About this color
#276AD8 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.182 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.026 away. White text reads best on it, at 5.07:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.182) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.13:1 |
| White text | 5.07:1 |
Values
| HEX | #276AD8 |
| RGB | rgb(39, 106, 216) |
| HSL | hsl(217, 69%, 50%) |
| OKLCH | oklch(54.6% 0.182 260) |
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 #276AD8 | 5.07:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #276AD8 | 4.13:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #276AD8 text on white | 5.07:1 | AA | Lc 74.5 | Content text, not long reading |
| #276AD8 text on black | 4.13:1 | AA large text | Lc -27.2 | 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 600.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF8
oklch(88.4% 0.046 260.7)
-
Step 300
300
#A2C2F6
oklch(80.9% 0.082 260)
-
Step 400
400
#6FA0F2
oklch(70.6% 0.132 260.2)
-
Step 500
500
#4986ED
oklch(63.1% 0.168 260.2)
-
Step 600
600 (this color)
#276AD8
oklch(54.6% 0.182 260)
-
Step 700
700
#1D5ABE
oklch(49% 0.169 260.1)
-
Step 800
800
#1A4B9A
oklch(42.8% 0.14 259.8)
-
Step 900
900
#1B3F7A
oklch(37.6% 0.109 259.8)
-
Step 950
950
#112548
oklch(26.9% 0.07 260.7)
#276AD8 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) | #2077DC | 0.033 |
| Deuteranopia (no green cones) | #0067D6 | 0.018 |
| Tritanopia (no blue cones) | #008597 | 0.140 |
| Achromatopsia (no color) | #6E6E6E | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #276AD8
#276AD8
oklch(54.6% 0.182 260)
- #926700
#926700
oklch(54.4% 0.113 79.9)
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 #276AD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.026
- Cerulean Blue #056EEE ΔE 0.035
- Azul #1D5DEC ΔE 0.046
- Neon Blue #4361EE ΔE 0.046
- Warm Blue #4B57DB ΔE 0.051
- Bright Blue #0165FC ΔE 0.058
- Mid Blue #276AB3 ΔE 0.058
- Windows Blue #3778BF ΔE 0.060
Use #276AD8 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.