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Recognised as Colour

#04256E

  • #04256E
  • Blue
  • Dark
  • Nearest: Midnight blue

#04256E is a blue with RGB values 4, 37, 110 and HSL 221°, 93%, 22%. It is a dark colour, so white text on it reaches 14:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#04256E#04256E
HEX#04256E
RGBrgb(4, 37, 110)
RGB (0–1)0.0157, 0.1451, 0.4314
RGB percentages1.6%, 14.5%, 43.1%
HSLhsl(221.3, 93%, 22.4%)
HSV / HSBhsv(221.3, 96.4%, 43.1%)
CMYK96.4%, 66.4%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer271,726
CSS custom property--colour: #04256E;

Brightness & contrast

Relative luminance0.02475WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.05:1
Contrast with white14.05:1WCAG normal text: AAA
Contrast with black1.49:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#FBDA91

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003170no red cones; affects about 1% of men; ΔE 10.2 from the original
Deuteranopia#00276Dno green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#003845no blue cones; rare, and affects men and women equally; ΔE 45.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.05:1WCAG large text: AAA
Contrast with black, large text1.49:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.7Dark slateblue · ΔE 14.3Rebecca purple · ΔE 26.6Indigo · ΔE 31.8Navy · ΔE 33.3Slate blue · ΔE 33.8
Nearest named CSS colourMidnight blue (#191970)ΔE 11.73, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6E4D04
Analogous#045A6E, #18046E
Triadic#6E0425, #256E04
Split complementary#6E1804, #5A6E04
Tetradic#6E045A, #6E4D04, #046E18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#467DF8
Lighter +30%#155BF6
Lighter +20%#0846D0
Lighter +10%#06369F
Darker −10%#02143D
Darker −20%#00040C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002372
Less saturated −25%#122A60

Channel breakdown

R4
G37
B110
Red4 (1.6%)
Green37 (14.5%)
Blue110 (43.1%)
Hue221.32°
Saturation (HSL)92.98%
Lightness22.35%
Dominant channelBlue
Hex per channelR 04 · G 25 · B 6E

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Every value on this page was computed from “04256e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.