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Recognised as Colour

#04157E

  • #04157E
  • Blue
  • Dark
  • Nearest: Midnight blue

#04157E is a blue with RGB values 4, 21, 126 and HSL 232°, 94%, 25%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#04157E#04157E
HEX#04157E
RGBrgb(4, 21, 126)
RGB (0–1)0.0157, 0.0824, 0.4941
RGB percentages1.6%, 8.2%, 49.4%
HSLhsl(231.6, 93.8%, 25.5%)
HSV / HSBhsv(231.6, 96.8%, 49.4%)
CMYK96.8%, 83.3%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer267,646
CSS custom property--colour: #04157E;

Brightness & contrast

Relative luminance0.02069WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.85:1
Contrast with white14.85:1WCAG normal text: AAA
Contrast with black1.41:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#FBEA81

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002D81no red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#00217Cno green cones; the most common form, about 1% of men; ΔE 10 from the original
Tritanopia#00374Ano blue cones; rare, and affects men and women equally; ΔE 63 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.85:1WCAG large text: AAA
Contrast with black, large text1.41:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11Navy · ΔE 11.7Indigo · ΔE 15.5Dark blue · ΔE 16.1Rebecca purple · ΔE 21.2Dark slateblue · ΔE 25.3
Nearest named CSS colourMidnight blue (#191970)ΔE 10.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7E6D04
Analogous#04527E, #30047E
Triadic#7E0415, #157E04
Split complementary#7E3004, #527E04
Tetradic#7E0452, #7E6D04, #047E30

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#546BFA
Lighter +30%#2341F8
Lighter +20%#0725E1
Lighter +10%#061DAF
Darker −10%#020D4D
Darker −20%#01051B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001282
Less saturated −25%#14216E

Channel breakdown

R4
G21
B126
Red4 (1.6%)
Green21 (8.2%)
Blue126 (49.4%)
Hue231.64°
Saturation (HSL)93.85%
Lightness25.49%
Dominant channelBlue
Hex per channelR 04 · G 15 · B 7E

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Every value on this page was computed from “04157e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.