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Recognised as Colour

#2377B2

  • #2377B2
  • Blue
  • Dark
  • Nearest: Steel blue

#2377B2 is a blue with RGB values 35, 119, 178 and HSL 205°, 67%, 42%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#2377B2#2377B2
HEX#2377B2
RGBrgb(35, 119, 178)
RGB (0–1)0.1373, 0.4667, 0.698
RGB percentages13.7%, 46.7%, 69.8%
HSLhsl(204.8, 67.1%, 41.8%)
HSV / HSBhsv(204.8, 80.3%, 69.8%)
CMYK80.3%, 33.1%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,324,402
CSS custom property--colour: #2377B2;

Brightness & contrast

Relative luminance0.16765WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.82:1
Contrast with white4.82:1WCAG normal text: AA
Contrast with black4.35:1WCAG normal text: Fail
Greyscale equivalent#696969
Inverted#DC884D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B79B5no red cones; affects about 1% of men; ΔE 10.7 from the original
Deuteranopia#476CB1no green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#00858Cno blue cones; rare, and affects men and women equally; ΔE 35.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.82:1WCAG large text: AAA
Contrast with black, large text4.35:1WCAG large text: AA

Named colours

Steel blue · ΔE 7.5Cornflower blue · ΔE 22Slate grey · ΔE 28.1Light slate grey · ΔE 28.3Deep skyblue · ΔE 28.7Dodgerblue · ΔE 30.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 7.52, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B25E23
Analogous#23B2A6, #232FB2
Triadic#B22377, #77B223
Split complementary#B2232F, #B2A523
Tetradic#A623B2, #B25E23, #30B223

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B1D6F0
Lighter +30%#87BFE7
Lighter +20%#5CA9DF
Lighter +10%#3192D7
Darker −10%#1B5B87
Darker −20%#123E5D
Darker −30%#0A2232
Darker −40%#010508
More saturated +25%#087CCD
Less saturated −25%#3E7297

Channel breakdown

R35
G119
B178
Red35 (13.7%)
Green119 (46.7%)
Blue178 (69.8%)
Hue204.76°
Saturation (HSL)67.14%
Lightness41.76%
Dominant channelBlue
Hex per channelR 23 · G 77 · B B2

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Every value on this page was computed from “2377b2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.