Nerdulator> put something in

Recognised as Colour

#237AAB

  • #237AAB
  • Blue
  • Dark
  • Nearest: Steel blue

#237AAB is a blue with RGB values 35, 122, 171 and HSL 202°, 66%, 40%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#237AAB#237AAB
HEX#237AAB
RGBrgb(35, 122, 171)
RGB (0–1)0.1373, 0.4784, 0.6706
RGB percentages13.7%, 47.8%, 67.1%
HSLhsl(201.6, 66%, 40.4%)
HSV / HSBhsv(201.6, 79.5%, 67.1%)
CMYK79.5%, 28.7%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,325,163
CSS custom property--colour: #237AAB;

Brightness & contrast

Relative luminance0.17217WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.73:1
Contrast with white4.73:1WCAG normal text: AA
Contrast with black4.44:1WCAG normal text: Fail
Greyscale equivalent#6B6B6B
Inverted#DC8554

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#637AADno red cones; affects about 1% of men; ΔE 13.9 from the original
Deuteranopia#506EAAno green cones; the most common form, about 1% of men; ΔE 15 from the original
Tritanopia#00868Bno blue cones; rare, and affects men and women equally; ΔE 29.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.73:1WCAG large text: AAA
Contrast with black, large text4.44:1WCAG large text: AA

Named colours

Steel blue · ΔE 5.6Slate grey · ΔE 23.8Light slate grey · ΔE 24Cornflower blue · ΔE 27.1Deep skyblue · ΔE 27.5Cadetblue · ΔE 31
Nearest named CSS colourSteel blue (#4682B4)ΔE 5.61, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB5423
Analogous#23AB98, #2336AB
Triadic#AB237A, #7AAB23
Split complementary#AB2336, #AB9823
Tetradic#9823AB, #AB5423, #36AB23

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACD6EE
Lighter +30%#82C1E5
Lighter +20%#57ADDD
Lighter +10%#2D98D4
Darker −10%#1A5C81
Darker −20%#123E56
Darker −30%#091F2C
Darker −40%#000102
More saturated +25%#0981C5
Less saturated −25%#3D7391

Channel breakdown

R35
G122
B171
Red35 (13.7%)
Green122 (47.8%)
Blue171 (67.1%)
Hue201.62°
Saturation (HSL)66.02%
Lightness40.39%
Dominant channelBlue
Hex per channelR 23 · G 7A · B AB

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 “237aab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.