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Colour

#00235F

  • #00235F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00235F is a blue with RGB values 0, 35, 95 and HSL 218°, 100%, 19%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00235F#00235F
HEX#00235F
RGBrgb(0, 35, 95)
RGB (0–1)0, 0.1373, 0.3725
RGB percentages0%, 13.7%, 37.3%
HSLhsl(217.9, 100%, 18.6%)
HSV / HSBhsv(217.9, 100%, 37.3%)
CMYK100%, 63.2%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,055
CSS custom property--colour: #00235F;

Brightness & contrast

Relative luminance0.02028WCAG 2.x, 0 is black and 1 is white
Perceived brightness41.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.94:1
Contrast with white14.94:1WCAG normal text: AAA
Contrast with black1.41:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#FFDCA0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002B61no red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#00235Eno green cones; the most common form, about 1% of men; ΔE 0.7 from the original
Tritanopia#00333Dno blue cones; rare, and affects men and women equally; ΔE 39.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.94:1WCAG large text: AAA
Contrast with black, large text1.41:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.7Midnight blue · ΔE 19.4Rebecca purple · ΔE 33.4Indigo · ΔE 39.2Slate blue · ΔE 40.8Navy · ΔE 41.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F3C00
Analogous#00535F, #0C005F
Triadic#5F0023, #235F00
Split complementary#5F0C00, #535F00
Tetradic#5F0053, #5F3C00, #005F0C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2C7AFF
Lighter +30%#005BF8
Lighter +20%#0049C5
Lighter +10%#003692
Darker −10%#00102C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00235F
Less saturated −25%#0C2653

Channel breakdown

R0
G35
B95
Red0 (0%)
Green35 (13.7%)
Blue95 (37.3%)
Hue217.89°
Saturation (HSL)100%
Lightness18.63%
Dominant channelBlue
Hex per channelR 00 · G 23 · B 5F

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Every value on this page was computed from “00235f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.