Colour

#28253F

#28253F
Blue
Dark
Nearest: Black

#28253F is a blue with RGB values 40, 37, 63 and HSL 247°, 26%, 20%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#28253F#28253F

HEX#28253F

RGBrgb(40, 37, 63)

RGB (0–1)0.1569, 0.1451, 0.2471

RGB percentages15.7%, 14.5%, 24.7%

HSLhsl(246.9, 26%, 19.6%)

HSV / HSBhsv(246.9, 41.3%, 24.7%)

CMYK36.5%, 41.3%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,630,975

CSS custom property--colour: #28253F;

Brightness & contrast

Relative luminance0.02133WCAG 2.x, 0 is black and 1 is white

Perceived brightness41.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.72:1

Contrast with white14.72:1WCAG normal text: AAA

Contrast with black1.43:1WCAG normal text: Fail

Greyscale equivalent#282828

Inverted#D7DAC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1D2940no red cones; affects about 1% of men; ΔE 6.2 from the original

Deuteranopia#1D273Eno green cones; the most common form, about 1% of men; ΔE 5.4 from the original

Tritanopia#222A2Fno blue cones; rare, and affects men and women equally; ΔE 15.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text14.72:1WCAG large text: AAA

Contrast with black, large text1.43:1WCAG large text: Fail

Named colours

Black · ΔE 24.4 Dark slate grey · ΔE 28.2 Dim grey · ΔE 33.6 Dark slateblue · ΔE 34.5 Slate grey · ΔE 38.6 Midnight blue · ΔE 40.6

Nearest named CSS colourBlack (#000000)ΔE 24.41, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3C3F25

Analogous#252F3F, #35253F

Triadic#3F2825, #253F28

Split complementary#3F3525, #2F3F25

Tetradic#3F252F, #3C3F25, #253F35

Tints, shades & saturation

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

Lighter +40%#837DB3

Lighter +30%#655E9F

Lighter +20%#514B7F

Lighter +10%#3C385F

Darker −10%#14121F

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1E194C

Less saturated −25%#323233

Channel breakdown

R40

G37

B63

Red40 (15.7%)

Green37 (14.5%)

Blue63 (24.7%)

Hue246.92°

Saturation (HSL)26%

Lightness19.61%

Dominant channelBlue

Hex per channelR 28 · G 25 · B 3F

Keep nerding

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

#28253F

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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