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Colour

#00238E

  • #00238E
  • Blue
  • Dark
  • Nearest: Midnight blue

#00238E is a blue with RGB values 0, 35, 142 and HSL 225°, 100%, 28%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00238E#00238E
HEX#00238E
RGBrgb(0, 35, 142)
RGB (0–1)0, 0.1373, 0.5569
RGB percentages0%, 13.7%, 55.7%
HSLhsl(225.2, 100%, 27.8%)
HSV / HSBhsv(225.2, 100%, 55.7%)
CMYK100%, 75.4%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,102
CSS custom property--colour: #00238E;

Brightness & contrast

Relative luminance0.03155WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.88:1
Contrast with white12.88:1WCAG normal text: AAA
Contrast with black1.63:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#FFDC71

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003891no red cones; affects about 1% of men; ΔE 16.2 from the original
Deuteranopia#002B8Cno green cones; the most common form, about 1% of men; ΔE 7.5 from the original
Tritanopia#004356no blue cones; rare, and affects men and women equally; ΔE 64.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.88:1WCAG large text: AAA
Contrast with black, large text1.63:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 12.6Navy · ΔE 15Indigo · ΔE 18.1Dark blue · ΔE 18.2Rebecca purple · ΔE 19.8Dark slateblue · ΔE 23.1
Nearest named CSS colourMidnight blue (#191970)ΔE 12.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8E6B00
Analogous#006A8E, #24008E
Triadic#8E0023, #238E00
Split complementary#8E2400, #6A8E00
Tetradic#8E006A, #8E6B00, #008E24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5B83FF
Lighter +30%#285DFF
Lighter +20%#003CF4
Lighter +10%#0030C1
Darker −10%#00165B
Darker −20%#000A28
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00238E
Less saturated −25%#122C7C

Channel breakdown

R0
G35
B142
Red0 (0%)
Green35 (13.7%)
Blue142 (55.7%)
Hue225.21°
Saturation (HSL)100%
Lightness27.84%
Dominant channelBlue
Hex per channelR 00 · G 23 · B 8E

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Every value on this page was computed from “00238e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.