#4D5BE9
Closest named color: Neon Blue (#4361EE). oklch(54.6% 0.212 272.8), rgb(77, 91, 233).
Aa
White text reads best on this color (5.26:1).
About this color
#4D5BE9 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.212 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.017 away. White text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.212) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #4D5BE9 |
| RGB | rgb(77, 91, 233) |
| HSL | hsl(235, 78%, 61%) |
| OKLCH | oklch(54.6% 0.212 272.8) |
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 #4D5BE9 | 5.26:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #4D5BE9 | 3.98:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #4D5BE9 text on white | 5.26:1 | AA | Lc 75.6 | Fine for body text |
| #4D5BE9 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
#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
#8298FF
oklch(70.8% 0.152 272.8)
-
Step 500
500
#657AFD
oklch(63.1% 0.195 272.7)
-
Step 600
600 (this color)
#4D5BE9
oklch(54.6% 0.212 272.8)
-
Step 700
700
#414CCE
oklch(49.1% 0.198 272.9)
-
Step 800
800
#3540A6
oklch(42.7% 0.163 272.7)
-
Step 900
900
#2D3884
oklch(37.8% 0.127 272.6)
-
Step 950
950
#1A214D
oklch(26.9% 0.081 272.9)
#4D5BE9 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) | #0073EE | 0.065 |
| Deuteranopia (no green cones) | #0065E6 | 0.051 |
| Tritanopia (no blue cones) | #007F99 | 0.173 |
| Achromatopsia (no color) | #6C6C6C | 0.213 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D5BE9
#4D5BE9
oklch(54.6% 0.212 272.8)
- #876E00
#876E00
oklch(54.7% 0.112 93.1)
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 #4D5BE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.017
- Warm Blue #4B57DB ΔE 0.024
- Royal Blue #4169E1 ΔE 0.035
- Azul #1D5DEC ΔE 0.042
- Dark Periwinkle #665FD1 ΔE 0.052
- Bright Blue #0165FC ΔE 0.055
- Cerulean Blue #056EEE ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.059
Use #4D5BE9 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.