HEX Color #1D66D3 (Royalblue)

About #1D66D3

The hex code #1D66D3 represents a beautifully specific shade of blue. If you're using CSS, you might find it aligns closely with Royalblue. Its digital footprint relies on 29 parts red, 102 parts green, and 211 parts blue light.

For print applications, it's crucial to understand its CMYK makeup. The color uses 86% Cyan, 52% Magenta, 0% Yellow, and 17% Black. Always request a physical proof before doing a large print run with this exact code.

Contrast ratios determine whether this color is safe for typography. Mathematical luminance calculations suggest that #FFFFFF text provides the most optimal reading experience. Be sure to check our contrast matrix below to see exactly how it performs against common backgrounds.

Color Space Conversions

HEX#1D66D3

RGB29, 102, 211

HSL215.9°, 75.8%, 47.1%

CMYK86%, 52%, 0%, 17%

HSV215.9°, 86.3%, 82.7%

LAB44.9, 19.3, -62.1

XYZ17.0, 14.5, 63.5

Decimal1926867

Color Harmonies

Complementary

#1D66D3 #D2891D

Analogous

#1DC1D2 #2E1DD2

Triadic

#D21D65 #65D21D

Tetradic

#D21DC1 #D2891D #1DD22F

Tints, Shades & Tones

Tints (Adding White)

#1D66D3

#3677D7

#4F88DC

#6899E1

#81AAE6

#9ABBEB

#B3CCF0

#CCDDF5

#E5EEFA

#FFFFFF

Shades (Adding Black)

#1D66D3

#195ABB

#164FA4

#13448C

#103875

#0C2D5D

#092246

#06162E

#030B17

#000000

WCAG Contrast Accessibility

5.39:1

Text on #FFFFFF

AA

3.89:1

Text on #000000

AA Large

5.16:1

Text on #F8FAFC

AA

3.31:1

Text on #0F172A

AA Large

CSS Implementation

.bg-color { background-color: #1D66D3; }

.text-color { color: #1D66D3; }

.border-color { border: 2px solid #1D66D3; }

Similar Colors

Royalblue

#4169E1