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Recognised as Colour

#437FFE

  • #437FFE
  • Blue
  • Dark
  • Nearest: Royal blue

#437FFE is a blue with RGB values 67, 127, 254 and HSL 221°, 99%, 63%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#437FFE#437FFE
HEX#437FFE
RGBrgb(67, 127, 254)
RGB (0–1)0.2627, 0.498, 0.9961
RGB percentages26.3%, 49.8%, 99.6%
HSLhsl(220.7, 98.9%, 62.9%)
HSV / HSBhsv(220.7, 73.6%, 99.6%)
CMYK73.6%, 50%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,423,678
CSS custom property--colour: #437FFE;

Brightness & contrast

Relative luminance0.23528WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.71:1
Contrast with white3.68:1WCAG normal text: Fail
Contrast with black5.71:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#BC8001

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2F8EFFno red cones; affects about 1% of men; ΔE 12.5 from the original
Deuteranopia#007DFBno green cones; the most common form, about 1% of men; ΔE 4.8 from the original
Tritanopia#009DB3no blue cones; rare, and affects men and women equally; ΔE 68.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.68:1WCAG large text: AA
Contrast with black, large text5.71:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.1Dodgerblue · ΔE 14.8Medium slateblue · ΔE 18.5Slate blue · ΔE 19.8Medium purple · ΔE 23.2Cornflower blue · ΔE 24.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.11, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FEC243
Analogous#43DDFE, #6443FE
Triadic#FE437F, #7FFE43
Split complementary#FE6543, #DDFE43
Tetradic#FE43DD, #FEC243, #43FE65

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DBE7FF
Lighter +20%#A8C4FF
Lighter +10%#76A2FE
Darker −10%#105CFE
Darker −20%#0147DA
Darker −30%#0136A7
Darker −40%#012674
More saturated +25%#427FFF
Less saturated −25%#5B87E6

Channel breakdown

R67
G127
B254
Red67 (26.3%)
Green127 (49.8%)
Blue254 (99.6%)
Hue220.75°
Saturation (HSL)98.94%
Lightness62.94%
Dominant channelBlue
Hex per channelR 43 · G 7F · B FE

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Every value on this page was computed from “437ffe” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.