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Recognised as Colour

#151C90

  • #151C90
  • Blue
  • Dark
  • Nearest: Navy

#151C90 is a blue with RGB values 21, 28, 144 and HSL 237°, 75%, 32%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Navy.

Colour values

#151C90#151C90
HEX#151C90
RGBrgb(21, 28, 144)
RGB (0–1)0.0824, 0.1098, 0.5647
RGB percentages8.2%, 11%, 56.5%
HSLhsl(236.6, 74.5%, 32.4%)
HSV / HSBhsv(236.6, 85.4%, 56.5%)
CMYK85.4%, 80.6%, 0%, 43.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,383,568
CSS custom property--colour: #151C90;

Brightness & contrast

Relative luminance0.03004WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.12:1
Contrast with white13.12:1WCAG normal text: AAA
Contrast with black1.6:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#EAE36F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003793no red cones; affects about 1% of men; ΔE 20.2 from the original
Deuteranopia#002A8Eno green cones; the most common form, about 1% of men; ΔE 11.7 from the original
Tritanopia#004056no blue cones; rare, and affects men and women equally; ΔE 67.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.12:1WCAG large text: AAA
Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Navy · ΔE 9.8Dark blue · ΔE 12.3Indigo · ΔE 14.4Midnight blue · ΔE 16.8Rebecca purple · ΔE 20.5Slate blue · ΔE 26.3
Nearest named CSS colourNavy (#000080)ΔE 9.81, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#908915
Analogous#155A90, #4B1590
Triadic#90151C, #1C9015
Split complementary#904B15, #5A9015
Tetradic#90155A, #908915, #15904B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#848AED
Lighter +30%#5760E7
Lighter +20%#2B35E0
Lighter +10%#1B25BD
Darker −10%#0F1363
Darker −20%#080B37
Darker −30%#02020A
Darker −40%#000000
More saturated +25%#000AA5
Less saturated −25%#2A2E7B

Channel breakdown

R21
G28
B144
Red21 (8.2%)
Green28 (11%)
Blue144 (56.5%)
Hue236.59°
Saturation (HSL)74.55%
Lightness32.35%
Dominant channelBlue
Hex per channelR 15 · G 1C · B 90

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Every value on this page was computed from “151c90” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.