Colour

#1B474D

#1B474D
Cyan
Dark
Nearest: Dark slate grey

#1B474D is a cyan with RGB values 27, 71, 77 and HSL 187°, 48%, 20%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1B474D#1B474D

HEX#1B474D

RGBrgb(27, 71, 77)

RGB (0–1)0.1059, 0.2784, 0.302

RGB percentages10.6%, 27.8%, 30.2%

HSLhsl(187.2, 48.1%, 20.4%)

HSV / HSBhsv(187.2, 64.9%, 30.2%)

CMYK64.9%, 7.8%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,787,725

CSS custom property--colour: #1B474D;

Brightness & contrast

Relative luminance0.05275WCAG 2.x, 0 is black and 1 is white

Perceived brightness62.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.22:1

Contrast with white10.22:1WCAG normal text: AAA

Contrast with black2.06:1WCAG normal text: Fail

Greyscale equivalent#3E3E3E

Inverted#E4B8B2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#41444Dno red cones; affects about 1% of men; ΔE 14.1 from the original

Deuteranopia#393F4Dno green cones; the most common form, about 1% of men; ΔE 14.2 from the original

Tritanopia#004A49no blue cones; rare, and affects men and women equally; ΔE 7.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.22:1WCAG large text: AAA

Contrast with black, large text2.06:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 5.9 Dim grey · ΔE 22.8 Teal · ΔE 26.1 Slate grey · ΔE 27.7 Gray · ΔE 30.2 Dark cyan · ΔE 30.4

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 5.93, clearly different but related

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4D211B

Analogous#1B4D3A, #1B2E4D

Triadic#4D1B47, #474D1B

Split complementary#4D1B2E, #4D3A1B

Tetradic#3A1B4D, #4D211B, #2E4D1B

Tints, shades & saturation

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

Lighter +40%#69BFCB

Lighter +30%#44AFBD

Lighter +20%#358D99

Lighter +10%#286A73

Darker −10%#0E2427

Darker −20%#010101

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0E515A

Less saturated −25%#283D40

Channel breakdown

R27

G71

B77

Red27 (10.6%)

Green71 (27.8%)

Blue77 (30.2%)

Hue187.2°

Saturation (HSL)48.08%

Lightness20.39%

Dominant channelBlue

Hex per channelR 1B · G 47 · B 4D

Keep nerding

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

#1B474D

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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