Colour

#04234B

#04234B
Blue
Dark
Nearest: Dark slateblue

#04234B is a blue with RGB values 4, 35, 75 and HSL 214°, 90%, 15%. It is a dark colour, so white text on it reaches 15.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#04234B#04234B

HEX#04234B

RGBrgb(4, 35, 75)

RGB (0–1)0.0157, 0.1373, 0.2941

RGB percentages1.6%, 13.7%, 29.4%

HSLhsl(213.8, 89.9%, 15.5%)

HSV / HSBhsv(213.8, 94.7%, 29.4%)

CMYK94.7%, 53.3%, 0%, 70.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer271,179

CSS custom property--colour: #04234B;

Brightness & contrast

Relative luminance0.01736WCAG 2.x, 0 is black and 1 is white

Perceived brightness36.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.59:1

Contrast with white15.59:1WCAG normal text: AAA

Contrast with black1.35:1WCAG normal text: Fail

Greyscale equivalent#1F1F1F

Inverted#FBDCB4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0B274Cno red cones; affects about 1% of men; ΔE 3.1 from the original

Deuteranopia#00214Ano green cones; the most common form, about 1% of men; ΔE 1.3 from the original

Tritanopia#002D33no blue cones; rare, and affects men and women equally; ΔE 27.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.59:1WCAG large text: AAA

Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 29.3 Black · ΔE 32 Midnight blue · ΔE 33.1 Dark slate grey · ΔE 35 Steel blue · ΔE 40.2 Dim grey · ΔE 41.8

Nearest named CSS colourDark slateblue (#483D8B)ΔE 29.26, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#4B2C04

Analogous#04464B, #09044B

Triadic#4B0423, #234B04

Split complementary#4B0804, #474B04

Tetradic#4B0446, #4B2C04, #044B09

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#2781F4

Lighter +30%#0C67DC

Lighter +20%#0950AC

Lighter +10%#073A7B

Darker −10%#010C1B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00224F

Less saturated −25%#0E2441

Channel breakdown

G35

B75

Red4 (1.6%)

Green35 (13.7%)

Blue75 (29.4%)

Hue213.8°

Saturation (HSL)89.87%

Lightness15.49%

Dominant channelBlue

Hex per channelR 04 · G 23 · B 4B

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#04234B

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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