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Recognised as Colour

#131FEE

  • #131FEE
  • Blue
  • Dark
  • Nearest: Medium blue

#131FEE is a blue with RGB values 19, 31, 238 and HSL 237°, 87%, 50%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#131FEE#131FEE
HEX#131FEE
RGBrgb(19, 31, 238)
RGB (0–1)0.0745, 0.1216, 0.9333
RGB percentages7.5%, 12.2%, 93.3%
HSLhsl(236.7, 86.6%, 50.4%)
HSV / HSBhsv(236.7, 92%, 93.3%)
CMYK92%, 87%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,253,358
CSS custom property--colour: #131FEE;

Brightness & contrast

Relative luminance0.07291WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.54:1
Contrast with white8.54:1WCAG normal text: AAA
Contrast with black2.46:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#ECE011

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057F3no red cones; affects about 1% of men; ΔE 33.6 from the original
Deuteranopia#0040EBno green cones; the most common form, about 1% of men; ΔE 20.1 from the original
Tritanopia#00688Eno blue cones; rare, and affects men and women equally; ΔE 106 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.54:1WCAG large text: AAA
Contrast with black, large text2.46:1WCAG large text: Fail

Named colours

Medium blue · ΔE 10Blue · ΔE 14.7Blue violet · ΔE 25.2Dark violet · ΔE 29.6Dark blue · ΔE 38.6Dark orchid · ΔE 39.6
Nearest named CSS colourMedium blue (#0000CD)ΔE 9.97, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EEE213
Analogous#138DEE, #7413EE
Triadic#EE131F, #1FEE13
Split complementary#EE7413, #8DEE13
Tetradic#EE138D, #EEE213, #13EE74

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D1D4FC
Lighter +30%#A2A6F8
Lighter +20%#7279F5
Lighter +10%#434CF1
Darker −10%#0E18C0
Darker −20%#0A1291
Darker −30%#070C61
Darker −40%#040631
More saturated +25%#0210FF
Less saturated −25%#333BCE

Channel breakdown

R19
G31
B238
Red19 (7.5%)
Green31 (12.2%)
Blue238 (93.3%)
Hue236.71°
Saturation (HSL)86.56%
Lightness50.39%
Dominant channelBlue
Hex per channelR 13 · G 1F · B EE

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Every value on this page was computed from “131fee” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.