#2B5CDE
Closest named color: Azul (#1D5DEC). oklch(52.4% 0.206 264.5), rgb(43, 92, 222).
Aa
White text reads best on this color (5.69:1).
About this color
#2B5CDE is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.206 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.023 away. White text reads best on it, at 5.69:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.206) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #2B5CDE |
| RGB | rgb(43, 92, 222) |
| HSL | hsl(224, 73%, 52%) |
| OKLCH | oklch(52.4% 0.206 264.5) |
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 #2B5CDE | 5.69:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #2B5CDE | 3.68:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #2B5CDE text on white | 5.69:1 | AA | Lc 77.8 | Fine for body text |
| #2B5CDE text on black | 3.68:1 | 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 600.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8D9FC
oklch(88.4% 0.052 264.8)
-
Step 300
300
#A3C0FD
oklch(80.9% 0.092 264.7)
-
Step 400
400
#729DFC
oklch(70.7% 0.147 264.5)
-
Step 500
500
#4E81FA
oklch(63.1% 0.189 264.4)
-
Step 600
600 (this color)
#2B5CDE
oklch(52.4% 0.206 264.5)
-
Step 700
700
#2754CB
oklch(49.1% 0.191 264.5)
-
Step 800
800
#2146A4
oklch(42.8% 0.158 264.4)
-
Step 900
900
#1F3C82
oklch(37.7% 0.123 264.3)
-
Step 950
950
#13244C
oklch(27.1% 0.077 264.5)
#2B5CDE 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) | #006FE2 | 0.045 |
| Deuteranopia (no green cones) | #005FDC | 0.019 |
| Tritanopia (no blue cones) | #007D94 | 0.159 |
| Achromatopsia (no color) | #676767 | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5CDE
#2B5CDE
oklch(52.4% 0.206 264.5)
- #876400
#876400
oklch(52.5% 0.108 84.5)
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 #2B5CDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.023
- Warm Blue #4B57DB ΔE 0.032
- Neon Blue #4361EE ΔE 0.037
- Royal Blue #4169E1 ΔE 0.041
- Cerulean Blue #056EEE ΔE 0.048
- Bright Blue #0165FC ΔE 0.050
- Electric Blue #0652FF ΔE 0.057
- Blue Blue #2242C7 ΔE 0.072
Use #2B5CDE 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.