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Colour

#274CA3

  • #274CA3
  • Blue
  • Dark
  • Nearest: Dark slateblue

#274CA3 is a blue with RGB values 39, 76, 163 and HSL 222°, 61%, 40%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#274CA3#274CA3
HEX#274CA3
RGBrgb(39, 76, 163)
RGB (0–1)0.1529, 0.298, 0.6392
RGB percentages15.3%, 29.8%, 63.9%
HSLhsl(222.1, 61.4%, 39.6%)
HSV / HSBhsv(222.1, 76.1%, 63.9%)
CMYK76.1%, 53.4%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,575,523
CSS custom property--colour: #274CA3;

Brightness & contrast

Relative luminance0.08245WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.93:1
Contrast with white7.93:1WCAG normal text: AAA
Contrast with black2.65:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#D8B35C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0D57A6no red cones; affects about 1% of men; ΔE 9.3 from the original
Deuteranopia#004CA1no green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#006170no blue cones; rare, and affects men and women equally; ΔE 51.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.93:1WCAG large text: AAA
Contrast with black, large text2.65:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12Royal blue · ΔE 21Slate blue · ΔE 21.6Midnight blue · ΔE 22.8Rebecca purple · ΔE 24.6Medium purple · ΔE 27.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A37E27
Analogous#278AA3, #4027A3
Triadic#A3274C, #4CA327
Split complementary#A34027, #8AA327
Tetradic#A3278A, #A37E27, #27A340

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABBEEB
Lighter +30%#829EE1
Lighter +20%#597FD7
Lighter +10%#315FCC
Darker −10%#1D397A
Darker −20%#132651
Darker −30%#091228
Darker −40%#000000
More saturated +25%#0E42BC
Less saturated −25%#40568A

Channel breakdown

R39
G76
B163
Red39 (15.3%)
Green76 (29.8%)
Blue163 (63.9%)
Hue222.1°
Saturation (HSL)61.39%
Lightness39.61%
Dominant channelBlue
Hex per channelR 27 · G 4C · B A3

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Every value on this page was computed from “274ca3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.