Colour

#1A2057

#1A2057
Blue
Dark
Nearest: Dark slateblue

#1A2057 is a blue with RGB values 26, 32, 87 and HSL 234°, 54%, 22%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1A2057#1A2057

HEX#1A2057

RGBrgb(26, 32, 87)

RGB (0–1)0.102, 0.1255, 0.3412

RGB percentages10.2%, 12.5%, 34.1%

HSLhsl(234.1, 54%, 22.2%)

HSV / HSBhsv(234.1, 70.1%, 34.1%)

CMYK70.1%, 63.2%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,712,215

CSS custom property--colour: #1A2057;

Brightness & contrast

Relative luminance0.01941WCAG 2.x, 0 is black and 1 is white

Perceived brightness40.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.13:1

Contrast with white15.13:1WCAG normal text: AAA

Contrast with black1.39:1WCAG normal text: Fail

Greyscale equivalent#232323

Inverted#E5DFA8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002959no red cones; affects about 1% of men; ΔE 9.6 from the original

Deuteranopia#002356no green cones; the most common form, about 1% of men; ΔE 6.1 from the original

Tritanopia#002D38no blue cones; rare, and affects men and women equally; ΔE 35.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.13:1WCAG large text: AAA

Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19.5 Midnight blue · ΔE 21 Rebecca purple · ΔE 33.6 Indigo · ΔE 39.5 Black · ΔE 41.3 Slate blue · ΔE 42.6

Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.52, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#57511A

Analogous#1A3F57, #321A57

Triadic#571A20, #20571A

Split complementary#57321A, #3F571A

Tetradic#571A3F, #57511A, #1A5732

Tints, shades & saturation

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

Lighter +40%#6A75D3

Lighter +30%#4350C7

Lighter +20%#313DA6

Lighter +10%#262E7E

Darker −10%#0E1230

Darker −20%#030308

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0C1565

Less saturated −25%#282B49

Channel breakdown

R26

G32

B87

Red26 (10.2%)

Green32 (12.5%)

Blue87 (34.1%)

Hue234.1°

Saturation (HSL)53.98%

Lightness22.16%

Dominant channelBlue

Hex per channelR 1A · G 20 · B 57

Keep nerding

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#1A2057

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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