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Colour

#02439F

  • #02439F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#02439F is a blue with RGB values 2, 67, 159 and HSL 215°, 98%, 32%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#02439F#02439F
HEX#02439F
RGBrgb(2, 67, 159)
RGB (0–1)0.0078, 0.2627, 0.6235
RGB percentages0.8%, 26.3%, 62.4%
HSLhsl(215.2, 97.5%, 31.6%)
HSV / HSBhsv(215.2, 98.7%, 62.4%)
CMYK98.7%, 57.9%, 0%, 37.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer148,383
CSS custom property--colour: #02439F;

Brightness & contrast

Relative luminance0.0653WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.11:1
Contrast with white9.11:1WCAG normal text: AAA
Contrast with black2.31:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#FDBC60

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004FA2no red cones; affects about 1% of men; ΔE 9 from the original
Deuteranopia#00429Dno green cones; the most common form, about 1% of men; ΔE 0.7 from the original
Tritanopia#005A6Ano blue cones; rare, and affects men and women equally; ΔE 53.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.11:1WCAG large text: AAA
Contrast with black, large text2.31:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.8Midnight blue · ΔE 19.4Royal blue · ΔE 21Slate blue · ΔE 21.7Rebecca purple · ΔE 23.8Medium purple · ΔE 29.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.78, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9F5E02
Analogous#02929F, #0F029F
Triadic#9F0243, #439F02
Split complementary#9F0F02, #929F02
Tetradic#9F0292, #9F5E02, #029F0F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#70AAFD
Lighter +30%#3D8DFD
Lighter +20%#0B6FFC
Lighter +10%#0358D1
Darker −10%#012E6D
Darker −20%#01193A
Darker −30%#000308
Darker −40%#000000
More saturated +25%#0043A1
Less saturated −25%#16468B

Channel breakdown

R2
G67
B159
Red2 (0.8%)
Green67 (26.3%)
Blue159 (62.4%)
Hue215.16°
Saturation (HSL)97.52%
Lightness31.57%
Dominant channelBlue
Hex per channelR 02 · G 43 · B 9F

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Every value on this page was computed from “02439f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.