Nerdulator> put something in

Recognised as Colour

#233F50

  • #233F50
  • Blue
  • Dark
  • Nearest: Dark slate grey

#233F50 is a blue with RGB values 35, 63, 80 and HSL 203°, 39%, 23%. 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

#233F50#233F50
HEX#233F50
RGBrgb(35, 63, 80)
RGB (0–1)0.1373, 0.2471, 0.3137
RGB percentages13.7%, 24.7%, 31.4%
HSLhsl(202.7, 39.1%, 22.5%)
HSV / HSBhsv(202.7, 56.3%, 31.4%)
CMYK56.3%, 21.2%, 0%, 68.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,309,968
CSS custom property--colour: #233F50;

Brightness & contrast

Relative luminance0.04492WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.06:1
Contrast with white11.06:1WCAG normal text: AAA
Contrast with black1.9:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#DCC0AF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#373F51no red cones; affects about 1% of men; ΔE 6.9 from the original
Deuteranopia#313A50no green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#0A4345no blue cones; rare, and affects men and women equally; ΔE 13.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.06:1WCAG large text: AAA
Contrast with black, large text1.9:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.3Dim grey · ΔE 24Slate grey · ΔE 27.9Black · ΔE 29.1Light slate grey · ΔE 30.9Gray · ΔE 31.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#503423
Analogous#23504A, #232950
Triadic#50233F, #3F5023
Split complementary#502329, #504A23
Tetradic#4A2350, #503423, #295023

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7AA9C5
Lighter +30%#5792B5
Lighter +20%#427797
Lighter +10%#335B73
Darker −10%#13232D
Darker −20%#040709
Darker −30%#000000
Darker −40%#000000
More saturated +25%#15435E
Less saturated −25%#313B42

Channel breakdown

R35
G63
B80
Red35 (13.7%)
Green63 (24.7%)
Blue80 (31.4%)
Hue202.67°
Saturation (HSL)39.13%
Lightness22.55%
Dominant channelBlue
Hex per channelR 23 · G 3F · B 50

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 “233f50” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.