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Colour

#151DC4

  • #151DC4
  • Blue
  • Dark
  • Nearest: Medium blue

#151DC4 is a blue with RGB values 21, 29, 196 and HSL 237°, 81%, 43%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#151DC4#151DC4
HEX#151DC4
RGBrgb(21, 29, 196)
RGB (0–1)0.0824, 0.1137, 0.7686
RGB percentages8.2%, 11.4%, 76.9%
HSLhsl(237.3, 80.6%, 42.5%)
HSV / HSBhsv(237.3, 89.3%, 76.9%)
CMYK89.3%, 85.2%, 0%, 23.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,383,876
CSS custom property--colour: #151DC4;

Brightness & contrast

Relative luminance0.05024WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.48:1
Contrast with white10.48:1WCAG normal text: AAA
Contrast with black2:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#EAE23B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0048C8no red cones; affects about 1% of men; ΔE 28 from the original
Deuteranopia#0036C1no green cones; the most common form, about 1% of men; ΔE 17.2 from the original
Tritanopia#005675no blue cones; rare, and affects men and women equally; ΔE 89.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.48:1WCAG large text: AAA
Contrast with black, large text2:1WCAG large text: Fail

Named colours

Medium blue · ΔE 13.3Dark blue · ΔE 20Blue violet · ΔE 21.7Navy · ΔE 24.9Dark violet · ΔE 26.4Dark orchid · ΔE 29.5
Nearest named CSS colourMedium blue (#0000CD)ΔE 13.27, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C4BC15
Analogous#1574C4, #6515C4
Triadic#C4151D, #1DC415
Split complementary#C46515, #75C415
Tetradic#C41574, #C4BC15, #15C465

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AFB2F6
Lighter +30%#8186F1
Lighter +20%#525AED
Lighter +10%#242DE8
Darker −10%#101696
Darker −20%#0B0F68
Darker −30%#06093A
Darker −40%#01020C
More saturated +25%#000AD9
Less saturated −25%#3036A9

Channel breakdown

R21
G29
B196
Red21 (8.2%)
Green29 (11.4%)
Blue196 (76.9%)
Hue237.26°
Saturation (HSL)80.65%
Lightness42.55%
Dominant channelBlue
Hex per channelR 15 · G 1D · B C4

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Every value on this page was computed from “151dc4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.