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Recognised as Colour

#2357CC

  • #2357CC
  • Blue
  • Dark
  • Nearest: Royal blue

#2357CC is a blue with RGB values 35, 87, 204 and HSL 222°, 71%, 47%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2357CC#2357CC
HEX#2357CC
RGBrgb(35, 87, 204)
RGB (0–1)0.1373, 0.3412, 0.8
RGB percentages13.7%, 34.1%, 80%
HSLhsl(221.5, 70.7%, 46.9%)
HSV / HSBhsv(221.5, 82.8%, 80%)
CMYK82.8%, 57.4%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,316,236
CSS custom property--colour: #2357CC;

Brightness & contrast

Relative luminance0.11533WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.35:1
Contrast with white6.35:1WCAG normal text: AA
Contrast with black3.31:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#DCA833

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0067D0no red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#0058CAno green cones; the most common form, about 1% of men; ΔE 3.2 from the original
Tritanopia#007589no blue cones; rare, and affects men and women equally; ΔE 66.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.35:1WCAG large text: AAA
Contrast with black, large text3.31:1WCAG large text: AA

Named colours

Royal blue · ΔE 7.4Slate blue · ΔE 12.9Medium slateblue · ΔE 18.4Medium purple · ΔE 23.3Dark slateblue · ΔE 25.1Rebecca purple · ΔE 25.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.39, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CC9823
Analogous#23ABCC, #4423CC
Triadic#CC2357, #57CC23
Split complementary#CC4423, #ABCC23
Tetradic#CC23AB, #CC9823, #23CC44

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6D4F5
Lighter +30%#9AB4EE
Lighter +20%#6F94E6
Lighter +10%#4373DF
Darker −10%#1C44A0
Darker −20%#143275
Darker −30%#0D1F49
Darker −40%#050D1E
More saturated +25%#054CEA
Less saturated −25%#4162AE

Channel breakdown

R35
G87
B204
Red35 (13.7%)
Green87 (34.1%)
Blue204 (80%)
Hue221.54°
Saturation (HSL)70.71%
Lightness46.86%
Dominant channelBlue
Hex per channelR 23 · G 57 · B CC

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Every value on this page was computed from “2357cc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.