#5165E6
Closest named color: Royal Blue (#4169E1). oklch(56.4% 0.195 271.9), rgb(81, 101, 230).
Aa
White text reads best on this color (4.82:1).
About this color
#5165E6 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.195 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.020 away. White text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #5165E6 |
| RGB | rgb(81, 101, 230) |
| HSL | hsl(232, 75%, 61%) |
| OKLCH | oklch(56.4% 0.195 271.9) |
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 #5165E6 | 4.82:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #5165E6 | 4.35:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #5165E6 text on white | 4.82:1 | AA | Lc 73.0 | Content text, not long reading |
| #5165E6 text on black | 4.35:1 | AA large text | Lc -28.7 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CDD8FA
oklch(88.5% 0.048 271.2)
-
Step 300
300
#ACBEFA
oklch(80.9% 0.087 271.4)
-
Step 400
400
#8299F8
oklch(70.6% 0.141 272.1)
-
Step 500
500
#657DF4
oklch(63.1% 0.179 271.8)
-
Step 600
600 (this color)
#5165E6
oklch(56.4% 0.195 271.9)
-
Step 700
700
#4050C5
oklch(49% 0.182 271.9)
-
Step 800
800
#3543A0
oklch(42.8% 0.15 272)
-
Step 900
900
#2D3A7F
oklch(37.8% 0.117 271.7)
-
Step 950
950
#1A224A
oklch(26.9% 0.075 272)
#5165E6 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) | #0079EA | 0.061 |
| Deuteranopia (no green cones) | #006BE3 | 0.052 |
| Tritanopia (no blue cones) | #00849C | 0.161 |
| Achromatopsia (no color) | #727272 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5165E6
#5165E6
oklch(56.4% 0.195 271.9)
- #8E7200
#8E7200
oklch(56.3% 0.115 91.6)
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 #5165E6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.020
- Neon Blue #4361EE ΔE 0.023
- Warm Blue #4B57DB ΔE 0.038
- Dark Periwinkle #665FD1 ΔE 0.042
- Cerulean Blue #056EEE ΔE 0.050
- Slate Blue #6A5ACD ΔE 0.054
- Azul #1D5DEC ΔE 0.054
- Light Indigo #6D5ACF ΔE 0.054
Use #5165E6 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.