#0450DB
Closest named color: Azul (#1D5DEC). oklch(49.1% 0.222 262), rgb(4, 80, 219).
Aa
White text reads best on this color (6.61:1).
About this color
#0450DB is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.222 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.044 away. White text reads best on it, at 6.61:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.222) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.17:1 |
| White text | 6.61:1 |
Values
| HEX | #0450DB |
| RGB | rgb(4, 80, 219) |
| HSL | hsl(219, 96%, 44%) |
| OKLCH | oklch(49.1% 0.222 262) |
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 #0450DB | 6.61:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #0450DB | 3.17:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #0450DB text on white | 6.61:1 | AA | Lc 81.6 | Fine for body text |
| #0450DB text on black | 3.17:1 | AA large text | Lc -20.3 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEAFF
oklch(93.5% 0.031 263.5)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9FC1FF
oklch(80.9% 0.096 262.2)
-
Step 400
400
#6A9EFF
oklch(70.6% 0.153 261.9)
-
Step 500
500
#4182FF
oklch(63.1% 0.198 261.8)
-
Step 600
600
#1363FB
oklch(55.6% 0.238 261.9)
-
Step 700
700 (this color)
#0450DB
oklch(49.1% 0.222 262)
-
Step 800
800
#0943B1
oklch(42.7% 0.184 261.9)
-
Step 900
900
#113A8C
oklch(37.6% 0.144 262.1)
-
Step 950
950
#0B2352
oklch(27% 0.091 262)
#0450DB 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) | #0066DF | 0.052 |
| Deuteranopia (no green cones) | #0054D8 | 0.010 |
| Tritanopia (no blue cones) | #00758E | 0.167 |
| Achromatopsia (no color) | #5D5D5D | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0450DB
#0450DB
oklch(49.1% 0.222 262)
- #7D5A00
#7D5A00
oklch(49.1% 0.101 82.2)
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 #0450DB, closest first.
No curated palette has a color within ΔE 0.04 of #0450DB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.044
- Blue Blue #2242C7 ΔE 0.044
- Electric Blue #0652FF ΔE 0.056
- Vibrant Blue #0339F8 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.060
- Majorelle Blue #3F37C9 ΔE 0.066
- Bright Blue #0165FC ΔE 0.071
- Neon Blue #4361EE ΔE 0.071
Use #0450DB 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.