#2A5ED9
Closest named color: Azul (#1D5DEC). oklch(52.3% 0.197 263.6), rgb(42, 94, 217).
Aa
White text reads best on this color (5.67:1).
About this color
#2A5ED9 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.197 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.030 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #2A5ED9 |
| RGB | rgb(42, 94, 217) |
| HSL | hsl(222, 70%, 51%) |
| OKLCH | oklch(52.3% 0.197 263.6) |
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 #2A5ED9 | 5.67:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #2A5ED9 | 3.70:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #2A5ED9 text on white | 5.67:1 | AA | Lc 77.7 | Fine for body text |
| #2A5ED9 text on black | 3.70:1 | AA large text | Lc -24.0 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4981FD
oklch(63.1% 0.194 263.5)
-
Step 600
600
#2D66ED
oklch(55.6% 0.213 263.6)
-
Step 700
700 (this color)
#2A5ED9
oklch(52.3% 0.197 263.6)
-
Step 800
800
#1D45A6
oklch(42.6% 0.163 263.8)
-
Step 900
900
#1C3C84
oklch(37.7% 0.127 263.5)
-
Step 950
950
#11244D
oklch(27.1% 0.08 263.3)
#2A5ED9 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) | #006FDD | 0.042 |
| Deuteranopia (no green cones) | #005FD7 | 0.018 |
| Tritanopia (no blue cones) | #007D92 | 0.153 |
| Achromatopsia (no color) | #676767 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5ED9
#2A5ED9
oklch(52.3% 0.197 263.6)
- #876300
#876300
oklch(52.3% 0.107 83.6)
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 #2A5ED9, closest first.
No curated palette has a color within ΔE 0.04 of #2A5ED9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.030
- Warm Blue #4B57DB ΔE 0.034
- Royal Blue #4169E1 ΔE 0.039
- Neon Blue #4361EE ΔE 0.042
- Cerulean Blue #056EEE ΔE 0.048
- Bright Blue #0165FC ΔE 0.056
- Electric Blue #0652FF ΔE 0.066
- Mid Blue #276AB3 ΔE 0.070
Use #2A5ED9 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.