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Colour

#037DF7

  • #037DF7
  • Blue
  • Dark
  • Nearest: Royal blue

#037DF7 is a blue with RGB values 3, 125, 247 and HSL 210°, 98%, 49%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#037DF7#037DF7
HEX#037DF7
RGBrgb(3, 125, 247)
RGB (0–1)0.0118, 0.4902, 0.9686
RGB percentages1.2%, 49%, 96.9%
HSLhsl(210, 97.6%, 49%)
HSV / HSBhsv(210, 98.8%, 96.9%)
CMYK98.8%, 49.4%, 0%, 3.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer228,855
CSS custom property--colour: #037DF7;

Brightness & contrast

Relative luminance0.21402WCAG 2.x, 0 is black and 1 is white
Perceived brightness127 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.28:1
Contrast with white3.98:1WCAG normal text: Fail
Contrast with black5.28:1WCAG normal text: AA
Greyscale equivalent#6C6C6C
Inverted#FC8208

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2C8AFBno red cones; affects about 1% of men; ΔE 7.9 from the original
Deuteranopia#0076F5no green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#009BAEno blue cones; rare, and affects men and women equally; ΔE 66.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.98:1WCAG large text: AA
Contrast with black, large text5.28:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10.8Dodgerblue · ΔE 11.1Cornflower blue · ΔE 22.7Slate blue · ΔE 22.8Medium slateblue · ΔE 23.7Medium purple · ΔE 26.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F77D03
Analogous#03F7F7, #0303F7
Triadic#F7037D, #7DF703
Split complementary#F70303, #F7F703
Tetradic#F703F7, #F77D03, #03F703

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C8E3FE
Lighter +30%#95CAFE
Lighter +20%#63B0FD
Lighter +10%#3197FC
Darker −10%#0263C5
Darker −20%#024A92
Darker −30%#013060
Darker −40%#01172D
More saturated +25%#007DFA
Less saturated −25%#227DD8

Channel breakdown

R3
G125
B247
Red3 (1.2%)
Green125 (49%)
Blue247 (96.9%)
Hue210°
Saturation (HSL)97.6%
Lightness49.02%
Dominant channelBlue
Hex per channelR 03 · G 7D · B F7

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Every value on this page was computed from “037df7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.