#455CEB
Closest named color: Neon Blue (#4361EE). oklch(54.5% 0.216 270.4), rgb(69, 92, 235).
Aa
White text reads best on this color (5.27:1).
About this color
#455CEB is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.216 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.012 away. White text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.216) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #455CEB |
| RGB | rgb(69, 92, 235) |
| HSL | hsl(232, 81%, 60%) |
| OKLCH | oklch(54.5% 0.216 270.4) |
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 #455CEB | 5.27:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #455CEB | 3.98:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #455CEB text on white | 5.27:1 | AA | Lc 75.6 | Fine for body text |
| #455CEB text on black | 3.98:1 | AA large text | Lc -26.1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FD
oklch(93.5% 0.028 270.4)
-
Step 200
200
#CBD8FE
oklch(88.5% 0.054 270.4)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7D99FF
oklch(70.7% 0.152 270.5)
-
Step 500
500
#5E7BFF
oklch(63.1% 0.198 270.4)
-
Step 600
600 (this color)
#455CEB
oklch(54.5% 0.216 270.4)
-
Step 700
700
#3A4ED0
oklch(49.2% 0.2 270.4)
-
Step 800
800
#2F41A8
oklch(42.8% 0.166 270.2)
-
Step 900
900
#293885
oklch(37.6% 0.13 270.6)
-
Step 950
950
#18224E
oklch(27.1% 0.082 270.4)
#455CEB 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) | #0074F0 | 0.060 |
| Deuteranopia (no green cones) | #0064E8 | 0.041 |
| Tritanopia (no blue cones) | #00809B | 0.171 |
| Achromatopsia (no color) | #6C6C6C | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455CEB
#455CEB
oklch(54.5% 0.216 270.4)
- #896C00
#896C00
oklch(54.4% 0.111 90.1)
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 #455CEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.012
- Warm Blue #4B57DB ΔE 0.027
- Azul #1D5DEC ΔE 0.032
- Royal Blue #4169E1 ΔE 0.034
- Bright Blue #0165FC ΔE 0.046
- Cerulean Blue #056EEE ΔE 0.049
- Electric Blue #0652FF ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.060
Use #455CEB 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.