#4866DC
Closest named color: Royal Blue (#4169E1). oklch(55.4% 0.183 268.9), rgb(72, 102, 220).
Aa
White text reads best on this color (4.98:1).
About this color
#4866DC is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.183 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.011 away. White text reads best on it, at 4.98:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.20:1 |
| White text | 4.98:1 |
Values
| HEX | #4866DC |
| RGB | rgb(72, 102, 220) |
| HSL | hsl(228, 68%, 57%) |
| OKLCH | oklch(55.4% 0.183 268.9) |
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 #4866DC | 4.98:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #4866DC | 4.20:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #4866DC text on white | 4.98:1 | AA | Lc 74.1 | Content text, not long reading |
| #4866DC text on black | 4.20:1 | AA large text | Lc -27.6 | 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#ABBFF7
oklch(80.9% 0.083 269.3)
-
Step 400
400
#7F9CF3
oklch(70.8% 0.132 268.9)
-
Step 500
500
#6080EE
oklch(63% 0.169 269)
-
Step 600
600 (this color)
#4866DC
oklch(55.4% 0.183 268.9)
-
Step 700
700
#3A55C0
oklch(49.2% 0.17 268.6)
-
Step 800
800
#30469B
oklch(42.7% 0.141 268.8)
-
Step 900
900
#2A3C7B
oklch(37.7% 0.109 268.7)
-
Step 950
950
#192348
oklch(26.9% 0.07 269.8)
#4866DC 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) | #0A77E0 | 0.050 |
| Deuteranopia (no green cones) | #0069DA | 0.042 |
| Tritanopia (no blue cones) | #008297 | 0.150 |
| Achromatopsia (no color) | #6F6F6F | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4866DC
#4866DC
oklch(55.4% 0.183 268.9)
- #8D6E00
#8D6E00
oklch(55.3% 0.113 89.1)
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 #4866DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.011
- Neon Blue #4361EE ΔE 0.031
- Warm Blue #4B57DB ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.042
- Cerulean Blue #056EEE ΔE 0.047
- Azul #1D5DEC ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.054
- Iris #6258C4 ΔE 0.055
Use #4866DC 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.