Nerdulator> put something in

Recognised as Colour

#1B454C

  • #1B454C
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1B454C is a cyan with RGB values 27, 69, 76 and HSL 189°, 48%, 20%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1B454C#1B454C
HEX#1B454C
RGBrgb(27, 69, 76)
RGB (0–1)0.1059, 0.2706, 0.298
RGB percentages10.6%, 27.1%, 29.8%
HSLhsl(188.6, 47.6%, 20.2%)
HSV / HSBhsv(188.6, 64.5%, 29.8%)
CMYK64.5%, 9.2%, 0%, 70.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,787,212
CSS custom property--colour: #1B454C;

Brightness & contrast

Relative luminance0.05011WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.49:1
Contrast with white10.49:1WCAG normal text: AAA
Contrast with black2:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#E4BAB3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3F424Cno red cones; affects about 1% of men; ΔE 13.5 from the original
Deuteranopia#373D4Cno green cones; the most common form, about 1% of men; ΔE 13.7 from the original
Tritanopia#004847no blue cones; rare, and affects men and women equally; ΔE 8.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.49:1WCAG large text: AAA
Contrast with black, large text2:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 6.6Dim grey · ΔE 23.1Teal · ΔE 27.2Slate grey · ΔE 28Black · ΔE 30.6Gray · ΔE 30.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.65, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4C221B
Analogous#1B4C3B, #1B2D4C
Triadic#4C1B45, #454C1B
Split complementary#4C1B2D, #4C3A1B
Tetradic#3A1B4C, #4C221B, #2D4C1B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#69BCCA
Lighter +30%#44ABBC
Lighter +20%#368997
Lighter +10%#286772
Darker −10%#0E2326
Darker −20%#000101
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0E4E59
Less saturated −25%#283C3F

Channel breakdown

R27
G69
B76
Red27 (10.6%)
Green69 (27.1%)
Blue76 (29.8%)
Hue188.57°
Saturation (HSL)47.57%
Lightness20.2%
Dominant channelBlue
Hex per channelR 1B · G 45 · B 4C

Keep nerding

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

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “1b454c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.