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Colour

#00438F

  • #00438F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00438F is a blue with RGB values 0, 67, 143 and HSL 212°, 100%, 28%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00438F#00438F
HEX#00438F
RGBrgb(0, 67, 143)
RGB (0–1)0, 0.2627, 0.5608
RGB percentages0%, 26.3%, 56.1%
HSLhsl(211.9, 100%, 28%)
HSV / HSBhsv(211.9, 100%, 56.1%)
CMYK100%, 53.1%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer17,295
CSS custom property--colour: #00438F;

Brightness & contrast

Relative luminance0.05997WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.55:1
Contrast with white9.55:1WCAG normal text: AAA
Contrast with black2.2:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FFBC70

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#094C92no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#00408Eno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#005662no blue cones; rare, and affects men and women equally; ΔE 45.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.55:1WCAG large text: AAA
Contrast with black, large text2.2:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.6Midnight blue · ΔE 22.8Royal blue · ΔE 28.9Rebecca purple · ΔE 29.6Slate blue · ΔE 29.6Steel blue · ΔE 32.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.55, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8F4C00
Analogous#008A8F, #05008F
Triadic#8F0043, #438F00
Split complementary#8F0500, #8B8F00
Tetradic#8F008A, #8F4C00, #008F05

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5CA8FF
Lighter +30%#298DFF
Lighter +20%#0073F5
Lighter +10%#005BC2
Darker −10%#002B5C
Darker −20%#001329
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00438F
Less saturated −25%#12447D

Channel breakdown

R0
G67
B143
Red0 (0%)
Green67 (26.3%)
Blue143 (56.1%)
Hue211.89°
Saturation (HSL)100%
Lightness28.04%
Dominant channelBlue
Hex per channelR 00 · G 43 · B 8F

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Every value on this page was computed from “00438f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.