#455FEE
Closest named color: Neon Blue (#4361EE). oklch(55.3% 0.216 269.9), rgb(69, 95, 238).
Aa
White text reads best on this color (5.09:1).
About this color
#455FEE 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 0.005 away. White text reads best on it, at 5.09:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.216) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.12:1 |
| White text | 5.09:1 |
Values
| HEX | #455FEE |
| RGB | rgb(69, 95, 238) |
| HSL | hsl(231, 83%, 60%) |
| OKLCH | oklch(55.3% 0.216 269.9) |
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 #455FEE | 5.09:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #455FEE | 4.12:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #455FEE text on white | 5.09:1 | AA | Lc 74.5 | Content text, not long reading |
| #455FEE text on black | 4.12:1 | 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
#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
#A8BEFF
oklch(80.9% 0.096 269.8)
-
Step 400
400
#7C99FF
oklch(70.6% 0.153 270.2)
-
Step 500
500
#5D7CFF
oklch(63.2% 0.197 269.9)
-
Step 600
600 (this color)
#455FEE
oklch(55.3% 0.216 269.9)
-
Step 700
700
#384ED0
oklch(49.1% 0.201 269.8)
-
Step 800
800
#2E41A8
oklch(42.7% 0.166 269.8)
-
Step 900
900
#283985
oklch(37.8% 0.129 269.7)
-
Step 950
950
#17224E
oklch(27% 0.082 269.6)
#455FEE 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) | #0076F3 | 0.058 |
| Deuteranopia (no green cones) | #0066EB | 0.040 |
| Tritanopia (no blue cones) | #00839D | 0.173 |
| Achromatopsia (no color) | #6E6E6E | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455FEE
#455FEE
oklch(55.3% 0.216 269.9)
- #8C6E00
#8C6E00
oklch(55.2% 0.113 89.7)
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 #455FEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.005
- Royal Blue #4169E1 ΔE 0.031
- Warm Blue #4B57DB ΔE 0.034
- Azul #1D5DEC ΔE 0.034
- Bright Blue #0165FC ΔE 0.043
- Cerulean Blue #056EEE ΔE 0.045
- Electric Blue #0652FF ΔE 0.059
- Dark Periwinkle #665FD1 ΔE 0.061
Use #455FEE 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.