#4364EB
Closest named color: Neon Blue (#4361EE). oklch(55.9% 0.207 268.4), rgb(67, 100, 235).
Aa
White text reads best on this color (4.92:1).
About this color
#4364EB is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.207 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.008 away. White text reads best on it, at 4.92:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.207) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #4364EB |
| RGB | rgb(67, 100, 235) |
| HSL | hsl(228, 81%, 59%) |
| OKLCH | oklch(55.9% 0.207 268.4) |
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 #4364EB | 4.92:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #4364EB | 4.26:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #4364EB text on white | 4.92:1 | AA | Lc 73.6 | Content text, not long reading |
| #4364EB text on black | 4.26:1 | AA large text | Lc -28.1 | 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
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CBD9FC
oklch(88.6% 0.051 268.1)
-
Step 300
300
#A7BFFE
oklch(81% 0.093 268.2)
-
Step 400
400
#7A9BFD
oklch(70.8% 0.148 268.4)
-
Step 500
500
#5A7EFB
oklch(63.1% 0.19 268.4)
-
Step 600
600 (this color)
#4364EB
oklch(55.9% 0.207 268.4)
-
Step 700
700
#3551CC
oklch(49.2% 0.193 268.4)
-
Step 800
800
#2C43A4
oklch(42.6% 0.159 268.6)
-
Step 900
900
#263A82
oklch(37.6% 0.124 268.2)
-
Step 950
950
#16234C
oklch(27% 0.078 267.7)
#4364EB 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) | #0078F0 | 0.052 |
| Deuteranopia (no green cones) | #0069E8 | 0.037 |
| Tritanopia (no blue cones) | #00869E | 0.166 |
| Achromatopsia (no color) | #707070 | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4364EB
#4364EB
oklch(55.9% 0.207 268.4)
- #906F00
#906F00
oklch(55.9% 0.114 87.9)
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 #4364EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.008
- Royal Blue #4169E1 ΔE 0.020
- Cerulean Blue #056EEE ΔE 0.037
- Azul #1D5DEC ΔE 0.037
- Warm Blue #4B57DB ΔE 0.038
- Bright Blue #0165FC ΔE 0.043
- Clear Blue #247AFD ΔE 0.057
- Dark Periwinkle #665FD1 ΔE 0.058
Use #4364EB 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.