#505DEC
Closest named color: Neon Blue (#4361EE). oklch(55.4% 0.213 273.2), rgb(80, 93, 236).
Aa
White text reads best on this color (5.09:1).
About this color
#505DEC is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.213 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.016 away. White text reads best on it, at 5.09:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.213) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.11:1 |
| White text | 5.09:1 |
Values
| HEX | #505DEC |
| RGB | rgb(80, 93, 236) |
| HSL | hsl(235, 80%, 62%) |
| OKLCH | oklch(55.4% 0.213 273.2) |
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 #505DEC | 5.09:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #505DEC | 4.11:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #505DEC text on white | 5.09:1 | AA | Lc 74.6 | Content text, not long reading |
| #505DEC text on black | 4.11:1 | AA large text | Lc -27.1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FD
oklch(88.6% 0.052 272.2)
-
Step 300
300
#ACBDFF
oklch(80.9% 0.095 273)
-
Step 400
400
#8297FF
oklch(70.6% 0.154 273.2)
-
Step 500
500
#6679FD
oklch(63% 0.196 273.3)
-
Step 600
600 (this color)
#505DEC
oklch(55.4% 0.213 273.2)
-
Step 700
700
#424CCE
oklch(49.1% 0.198 273.2)
-
Step 800
800
#363FA6
oklch(42.6% 0.164 273.4)
-
Step 900
900
#2E3784
oklch(37.7% 0.128 273.5)
-
Step 950
950
#1A214D
oklch(26.9% 0.081 272.9)
#505DEC 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) | #0075F1 | 0.066 |
| Deuteranopia (no green cones) | #0067E9 | 0.053 |
| Tritanopia (no blue cones) | #00819C | 0.174 |
| Achromatopsia (no color) | #6E6E6E | 0.213 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #505DEC
#505DEC
oklch(55.4% 0.213 273.2)
- #897000
#897000
oklch(55.3% 0.113 93.3)
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 #505DEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.016
- Warm Blue #4B57DB ΔE 0.030
- Royal Blue #4169E1 ΔE 0.035
- Azul #1D5DEC ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.052
- Bright Blue #0165FC ΔE 0.055
- Cerulean Blue #056EEE ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.059
Use #505DEC 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.