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Colour

#2570FF

  • #2570FF
  • Blue
  • Dark
  • Nearest: Royal blue

#2570FF is a blue with RGB values 37, 112, 255 and HSL 219°, 100%, 57%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2570FF#2570FF
HEX#2570FF
RGBrgb(37, 112, 255)
RGB (0–1)0.1451, 0.4392, 1
RGB percentages14.5%, 43.9%, 100%
HSLhsl(219.4, 100%, 57.3%)
HSV / HSBhsv(219.4, 85.5%, 100%)
CMYK85.5%, 56.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,453,759
CSS custom property--colour: #2570FF;

Brightness & contrast

Relative luminance0.19202WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.84:1
Contrast with white4.34:1WCAG normal text: Fail
Contrast with black4.84:1WCAG normal text: AA
Greyscale equivalent#6A6A6A
Inverted#DA8F00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0083FFno red cones; affects about 1% of men; ΔE 15.9 from the original
Deuteranopia#0070FCno green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#0094ADno blue cones; rare, and affects men and women equally; ΔE 77 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.34:1WCAG large text: AA
Contrast with black, large text4.84:1WCAG large text: AAA

Named colours

Royal blue · ΔE 12.8Medium slateblue · ΔE 16Slate blue · ΔE 20.9Dodgerblue · ΔE 25.9Medium purple · ΔE 28.1Cornflower blue · ΔE 36.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFB425
Analogous#25DDFF, #4725FF
Triadic#FF2570, #70FF25
Split complementary#FF4725, #DDFF25
Tetradic#FF25DD, #FFB425, #25FF47

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F1F6FF
Lighter +30%#BED4FF
Lighter +20%#8BB3FF
Lighter +10%#5891FF
Darker −10%#0053F1
Darker −20%#0041BE
Darker −30%#00308B
Darker −40%#001E58
More saturated +25%#2570FF
Less saturated −25%#4078E4

Channel breakdown

R37
G112
B255
Red37 (14.5%)
Green112 (43.9%)
Blue255 (100%)
Hue219.36°
Saturation (HSL)100%
Lightness57.25%
Dominant channelBlue
Hex per channelR 25 · G 70 · B FF

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Every value on this page was computed from “2570ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.