Nerdulator> put something in

Colour

#1B334D

  • #1B334D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#1B334D is a blue with RGB values 27, 51, 77 and HSL 211°, 48%, 20%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1B334D#1B334D
HEX#1B334D
RGBrgb(27, 51, 77)
RGB (0–1)0.1059, 0.2, 0.302
RGB percentages10.6%, 20%, 30.2%
HSLhsl(211.2, 48.1%, 20.4%)
HSV / HSBhsv(211.2, 64.9%, 30.2%)
CMYK64.9%, 33.8%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,782,605
CSS custom property--colour: #1B334D;

Brightness & contrast

Relative luminance0.03136WCAG 2.x, 0 is black and 1 is white
Perceived brightness49.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.9:1
Contrast with white12.9:1WCAG normal text: AAA
Contrast with black1.63:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#E4CCB2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#28344Eno red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#212F4Cno green cones; the most common form, about 1% of men; ΔE 4.2 from the original
Tritanopia#00393Cno blue cones; rare, and affects men and women equally; ΔE 19.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.9:1WCAG large text: AAA
Contrast with black, large text1.63:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.8Black · ΔE 27.9Dim grey · ΔE 30.4Slate grey · ΔE 33.3Steel blue · ΔE 34.8Light slate grey · ΔE 36.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4D351B
Analogous#1B4C4D, #1C1B4D
Triadic#4D1B33, #334D1B
Split complementary#4D1C1B, #4C4D1B
Tetradic#4D1B4C, #4D351B, #1B4D1C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6998CB
Lighter +30%#447EBD
Lighter +20%#356599
Lighter +10%#284C73
Darker −10%#0E1A27
Darker −20%#010101
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0E325A
Less saturated −25%#283440

Channel breakdown

R27
G51
B77
Red27 (10.6%)
Green51 (20%)
Blue77 (30.2%)
Hue211.2°
Saturation (HSL)48.08%
Lightness20.39%
Dominant channelBlue
Hex per channelR 1B · G 33 · B 4D

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 “1b334d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.