Nerdulator> put something in

Recognised as Colour

#243D5B

  • #243D5B
  • Blue
  • Dark
  • Nearest: Dark slate grey

#243D5B is a blue with RGB values 36, 61, 91 and HSL 213°, 43%, 25%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#243D5B#243D5B
HEX#243D5B
RGBrgb(36, 61, 91)
RGB (0–1)0.1412, 0.2392, 0.3569
RGB percentages14.1%, 23.9%, 35.7%
HSLhsl(212.7, 43.3%, 24.9%)
HSV / HSBhsv(212.7, 60.4%, 35.7%)
CMYK60.4%, 33%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,375,003
CSS custom property--colour: #243D5B;

Brightness & contrast

Relative luminance0.04468WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.09:1
Contrast with white11.09:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#DBC2A4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#313F5Cno red cones; affects about 1% of men; ΔE 3.5 from the original
Deuteranopia#2A395Ano green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#004448no blue cones; rare, and affects men and women equally; ΔE 21.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.09:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.9Dim grey · ΔE 28.4Slate grey · ΔE 29.6Steel blue · ΔE 29.9Light slate grey · ΔE 32.4Black · ΔE 32.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B4224
Analogous#24585B, #27245B
Triadic#5B243D, #3D5B24
Split complementary#5B2724, #585B24
Tetradic#5B2458, #5B4224, #245B27

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7FA2CC
Lighter +30%#5A87BE
Lighter +20%#416EA4
Lighter +10%#325580
Darker −10%#162536
Darker −20%#070C12
Darker −30%#000000
Darker −40%#000000
More saturated +25%#143C6B
Less saturated −25%#343E4B

Channel breakdown

R36
G61
B91
Red36 (14.1%)
Green61 (23.9%)
Blue91 (35.7%)
Hue212.73°
Saturation (HSL)43.31%
Lightness24.9%
Dominant channelBlue
Hex per channelR 24 · G 3D · B 5B

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 “243d5b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.