#5B68E8
Closest named color: Royal Blue (#4169E1). oklch(57.7% 0.192 274.3), rgb(91, 104, 232).
Aa
Black text reads best on this color (4.59:1).
About this color
#5B68E8 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.192 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.032 away. Black text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.59:1 |
| White text | 4.57:1 |
Values
| HEX | #5B68E8 |
| RGB | rgb(91, 104, 232) |
| HSL | hsl(234, 75%, 63%) |
| OKLCH | oklch(57.7% 0.192 274.3) |
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 #5B68E8 | 4.57:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #5B68E8 | 4.59:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #5B68E8 text on white | 4.57:1 | AA | Lc 71.4 | Content text, not long reading |
| #5B68E8 text on black | 4.59:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CFD7FA
oklch(88.4% 0.049 275.2)
-
Step 300
300
#AFBDF9
oklch(80.9% 0.086 274.1)
-
Step 400
400
#8798F6
oklch(70.6% 0.139 274.5)
-
Step 500
500
#6B7CF2
oklch(63.1% 0.176 274.1)
-
Step 600
600 (this color)
#5B68E8
oklch(57.7% 0.192 274.3)
-
Step 700
700
#464FC3
oklch(49% 0.179 274.3)
-
Step 800
800
#39429E
oklch(42.7% 0.148 274.1)
-
Step 900
900
#31397D
oklch(37.7% 0.114 274.5)
-
Step 950
950
#1C2249
oklch(27% 0.072 274)
#5B68E8 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) | #007CEC | 0.068 |
| Deuteranopia (no green cones) | #0070E5 | 0.062 |
| Tritanopia (no blue cones) | #00869E | 0.163 |
| Achromatopsia (no color) | #757575 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B68E8
#5B68E8
oklch(57.7% 0.192 274.3)
- #907700
#907700
oklch(57.6% 0.118 94.2)
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 #5B68E8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.032
- Neon Blue #4361EE ΔE 0.036
- Dark Periwinkle #665FD1 ΔE 0.041
- Medium Slate Blue #7B68EE ΔE 0.046
- Warm Blue #4B57DB ΔE 0.051
- Cornflower #6A79F7 ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.052
- Slate Blue #6A5ACD ΔE 0.053
Use #5B68E8 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.