#5B67E4
Closest named color: Royal Blue (#4169E1). oklch(57.2% 0.188 274.7), rgb(91, 103, 228).
Aa
White text reads best on this color (4.66:1).
About this color
#5B67E4 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.188 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.030 away. White text reads best on it, at 4.66:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.50:1 |
| White text | 4.66:1 |
Values
| HEX | #5B67E4 |
| RGB | rgb(91, 103, 228) |
| HSL | hsl(235, 72%, 63%) |
| OKLCH | oklch(57.2% 0.188 274.7) |
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 #5B67E4 | 4.66:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #5B67E4 | 4.50:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #5B67E4 text on white | 4.66:1 | AA | Lc 72.0 | Content text, not long reading |
| #5B67E4 text on black | 4.50:1 | AA | Lc -29.7 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#CFD7F9
oklch(88.4% 0.048 274.9)
-
Step 300
300
#B0BDF8
oklch(80.9% 0.085 274.7)
-
Step 400
400
#8898F4
oklch(70.6% 0.136 274.9)
-
Step 500
500
#6D7CF0
oklch(63.1% 0.173 274.8)
-
Step 600
600 (this color)
#5B67E4
oklch(57.2% 0.188 274.7)
-
Step 700
700
#4750C1
oklch(49.1% 0.174 274.5)
-
Step 800
800
#3A429C
oklch(42.6% 0.145 274.6)
-
Step 900
900
#31397C
oklch(37.6% 0.113 274.5)
-
Step 950
950
#1D2249
oklch(27% 0.072 275)
#5B67E4 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) | #007AE8 | 0.068 |
| Deuteranopia (no green cones) | #006EE1 | 0.063 |
| Tritanopia (no blue cones) | #00849B | 0.161 |
| Achromatopsia (no color) | #747474 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B67E4
#5B67E4
oklch(57.2% 0.188 274.7)
- #8E7600
#8E7600
oklch(57.2% 0.117 94.7)
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 #5B67E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.030
- Dark Periwinkle #665FD1 ΔE 0.035
- Neon Blue #4361EE ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.047
- Warm Blue #4B57DB ΔE 0.047
- Slate Blue #6A5ACD ΔE 0.047
- Medium Slate Blue #7B68EE ΔE 0.049
- Cornflower #6A79F7 ΔE 0.056
Use #5B67E4 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.