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Recognised as Colour

#374CBD

  • #374CBD
  • Blue
  • Dark
  • Nearest: Slate blue

#374CBD is a blue with RGB values 55, 76, 189 and HSL 231°, 55%, 48%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#374CBD#374CBD
HEX#374CBD
RGBrgb(55, 76, 189)
RGB (0–1)0.2157, 0.298, 0.7412
RGB percentages21.6%, 29.8%, 74.1%
HSLhsl(230.6, 54.9%, 47.8%)
HSV / HSBhsv(230.6, 70.9%, 74.1%)
CMYK70.9%, 59.8%, 0%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,624,125
CSS custom property--colour: #374CBD;

Brightness & contrast

Relative luminance0.09655WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.16:1
Contrast with white7.16:1WCAG normal text: AAA
Contrast with black2.93:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#C8B342

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005EC1no red cones; affects about 1% of men; ΔE 15.4 from the original
Deuteranopia#0052BBno green cones; the most common form, about 1% of men; ΔE 8.9 from the original
Tritanopia#00687Dno blue cones; rare, and affects men and women equally; ΔE 64.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.16:1WCAG large text: AAA
Contrast with black, large text2.93:1WCAG large text: Fail

Named colours

Slate blue · ΔE 10.6Royal blue · ΔE 11.9Medium slateblue · ΔE 18.7Rebecca purple · ΔE 19.7Dark slateblue · ΔE 21.2Medium purple · ΔE 22.2
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 10.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BDA837
Analogous#378FBD, #6537BD
Triadic#BD374C, #4CBD37
Split complementary#BD6537, #8FBD37
Tetradic#BD378F, #BDA837, #37BD65

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFD4F1
Lighter +30%#A7B1E6
Lighter +20%#808EDA
Lighter +10%#586BCF
Darker −10%#2C3C95
Darker −20%#202C6E
Darker −30%#151C46
Darker −40%#090C1F
More saturated +25%#1837DC
Less saturated −25%#56619F

Channel breakdown

R55
G76
B189
Red55 (21.6%)
Green76 (29.8%)
Blue189 (74.1%)
Hue230.6°
Saturation (HSL)54.92%
Lightness47.84%
Dominant channelBlue
Hex per channelR 37 · G 4C · B BD

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Every value on this page was computed from “374cbd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.