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Recognised as Colour

#4037F7

  • #4037F7
  • Blue
  • Dark
  • Nearest: Medium blue

#4037F7 is a blue with RGB values 64, 55, 247 and HSL 243°, 92%, 59%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Medium blue.

Colour values

#4037F7#4037F7
HEX#4037F7
RGBrgb(64, 55, 247)
RGB (0–1)0.251, 0.2157, 0.9686
RGB percentages25.1%, 21.6%, 96.9%
HSLhsl(242.8, 92.3%, 59.2%)
HSV / HSBhsv(242.8, 77.7%, 96.9%)
CMYK74.1%, 77.7%, 0%, 3.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,208,631
CSS custom property--colour: #4037F7;

Brightness & contrast

Relative luminance0.10538WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.76:1
Contrast with white6.76:1WCAG normal text: AA
Contrast with black3.11:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#BFC808

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064FCno red cones; affects about 1% of men; ΔE 30.5 from the original
Deuteranopia#0052F4no green cones; the most common form, about 1% of men; ΔE 20.4 from the original
Tritanopia#007297no blue cones; rare, and affects men and women equally; ΔE 99.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.76:1WCAG large text: AAA
Contrast with black, large text3.11:1WCAG large text: AA

Named colours

Medium blue · ΔE 14.6Blue violet · ΔE 19.5Blue · ΔE 23.6Dark violet · ΔE 26.1Dark orchid · ΔE 32.8Dark blue · ΔE 35.9
Nearest named CSS colourMedium blue (#0000CD)ΔE 14.61, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EEF737
Analogous#378EF7, #A037F7
Triadic#F74037, #37F740
Split complementary#F7A037, #8EF737
Tetradic#F7378E, #EEF737, #37F7A0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FBFBFF
Lighter +30%#CCCAFD
Lighter +20%#9E99FB
Lighter +10%#6F68F9
Darker −10%#150AF1
Darker −20%#1008C0
Darker −30%#0C068F
Darker −40%#08045E
More saturated +25%#392FFF
Less saturated −25%#5851DD

Channel breakdown

R64
G55
B247
Red64 (25.1%)
Green55 (21.6%)
Blue247 (96.9%)
Hue242.81°
Saturation (HSL)92.31%
Lightness59.22%
Dominant channelBlue
Hex per channelR 40 · G 37 · B F7

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Every value on this page was computed from “4037f7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.