#5169E1
Closest named color: Royal Blue (#4169E1). oklch(56.8% 0.184 270.9), rgb(81, 105, 225).
Aa
White text reads best on this color (4.71:1).
About this color
#5169E1 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.184 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.017 away. White text reads best on it, at 4.71:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.184) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #5169E1 |
| RGB | rgb(81, 105, 225) |
| HSL | hsl(230, 71%, 60%) |
| OKLCH | oklch(56.8% 0.184 270.9) |
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 #5169E1 | 4.71:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #5169E1 | 4.45:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #5169E1 text on white | 4.71:1 | AA | Lc 72.3 | Content text, not long reading |
| #5169E1 text on black | 4.45:1 | AA large text | Lc -29.3 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#ADBEF7
oklch(80.9% 0.083 271.6)
-
Step 400
400
#829BF3
oklch(70.7% 0.132 270.7)
-
Step 500
500
#657FEE
oklch(63.1% 0.168 271)
-
Step 600
600 (this color)
#5169E1
oklch(56.8% 0.184 270.9)
-
Step 700
700
#3F53C0
oklch(49.1% 0.172 270.9)
-
Step 800
800
#34459B
oklch(42.7% 0.141 270.8)
-
Step 900
900
#2D3B7B
oklch(37.7% 0.11 271)
-
Step 950
950
#1A2348
oklch(27% 0.07 270.8)
#5169E1 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) | #147AE5 | 0.054 |
| Deuteranopia (no green cones) | #006DDF | 0.050 |
| Tritanopia (no blue cones) | #00859B | 0.153 |
| Achromatopsia (no color) | #737373 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5169E1
#5169E1
oklch(56.8% 0.184 270.9)
- #907300
#907300
oklch(56.7% 0.116 91.1)
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 #5169E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.017
- Neon Blue #4361EE ΔE 0.033
- Dark Periwinkle #665FD1 ΔE 0.040
- Warm Blue #4B57DB ΔE 0.045
- Cerulean Blue #056EEE ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.053
- Light Indigo #6D5ACF ΔE 0.054
- Iris #6258C4 ΔE 0.059
Use #5169E1 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.