#0011dd - Nightfall in Suburbia color

A vivid, saturated cobalt-blue leaning toward electric royal blue with a subtle indigo undertone. It reads as cool and intense, offering high contrast against white or pale neutrals. The hue feels energetic and modern—suitable for tech branding, signage, or accents that demand attention—while still retaining a refined, authoritative presence. Pair it with warm metallics like brass or gold for luxury, soft grays for restraint, or coral/apricot for vibrant complementary contrast.

color #0011dd

#0011dd color RGB value is 0, 17, 221, and the CMYK value is 1.00, 0.923, 0.00, 0.133. Alternative names for that color are: nightfall in suburbia, blue, mediumblue, dark blue, purple heart.

Color Conversion

Name
Values
CSS
RGB(0-255)
0, 17, 221
rgb(0, 17, 221)
CMYK
1.00, 0.923, 0.00, 0.133
-
sRGB
0.00, 0.0667, 0.867
rgb(0% 6.67% 86.7%)
Adobe® 98 RGB compatible
0.0535, 0.0947, 0.847
color(a98-rgb 0.053 0.095 0.847)
HCT
282, 79.1, 28.4
color(--hct 282 54.5% 28.4%)
HSL
235, 100, 43.3
hsl(235 100% 43.3%)
HSV
235, 100, 86.7
color(--hsv 235 100% 86.7%)
HWB
235, 0.00, 13.3
hwb(235 0% 13.3%)
Lab
26.1, 57.7, -98.5
lab(26.1 57.7 -98.5)
P3
0.0129, 0.0650, 0.832
color(display-p3 0.013 0.065 0.832)
XYZ D50
0.106, 0.0478, 0.517
color(xyz-d50 0.106 0.048 0.517)

Shades

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Tints

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Tones

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Color Harmonies

HEX:#0011dd
RGB:0 17 221
HSL:235.38deg 100% 43.33%
HEX:#ddcc00
RGB:221 204 0
HSL:55.38deg 100% 43.33%

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