#3B68EB
Closest named color: Royal Blue (#4169E1). oklch(56.3% 0.204 265.7), rgb(59, 104, 235).
Aa
White text reads best on this color (4.81:1).
About this color
#3B68EB is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.204 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.016 away. White text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.204) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.36:1 |
| White text | 4.81:1 |
Values
| HEX | #3B68EB |
| RGB | rgb(59, 104, 235) |
| HSL | hsl(225, 81%, 58%) |
| OKLCH | oklch(56.3% 0.204 265.7) |
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 #3B68EB | 4.81:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #3B68EB | 4.36:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #3B68EB text on white | 4.81:1 | AA | Lc 72.8 | Content text, not long reading |
| #3B68EB text on black | 4.36:1 | AA large text | Lc -28.9 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FC
oklch(88.5% 0.051 265.9)
-
Step 300
300
#A4C0FD
oklch(80.9% 0.092 265.3)
-
Step 400
400
#759CFC
oklch(70.6% 0.147 266)
-
Step 500
500
#5280F9
oklch(63% 0.188 265.6)
-
Step 600
600 (this color)
#3B68EB
oklch(56.3% 0.204 265.7)
-
Step 700
700
#2C53CA
oklch(49% 0.19 265.7)
-
Step 800
800
#2545A3
oklch(42.6% 0.157 265.7)
-
Step 900
900
#223B82
oklch(37.6% 0.124 266)
-
Step 950
950
#14234C
oklch(26.9% 0.078 266.1)
#3B68EB 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) | #007AEF | 0.046 |
| Deuteranopia (no green cones) | #006AE8 | 0.029 |
| Tritanopia (no blue cones) | #00889F | 0.161 |
| Achromatopsia (no color) | #727272 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B68EB
#3B68EB
oklch(56.3% 0.204 265.7)
- #946F00
#946F00
oklch(56.3% 0.115 85.4)
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 #3B68EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.016
- Neon Blue #4361EE ΔE 0.017
- Cerulean Blue #056EEE ΔE 0.027
- Azul #1D5DEC ΔE 0.037
- Bright Blue #0165FC ΔE 0.039
- Warm Blue #4B57DB ΔE 0.046
- Clear Blue #247AFD ΔE 0.049
- Dark Periwinkle #665FD1 ΔE 0.064
Use #3B68EB 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.