Nerdulator> put something in

Recognised as Colour

#253A57

  • #253A57
  • Blue
  • Dark
  • Nearest: Dark slate grey

#253A57 is a blue with RGB values 37, 58, 87 and HSL 215°, 40%, 24%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#253A57#253A57
HEX#253A57
RGBrgb(37, 58, 87)
RGB (0–1)0.1451, 0.2275, 0.3412
RGB percentages14.5%, 22.7%, 34.1%
HSLhsl(214.8, 40.3%, 24.3%)
HSV / HSBhsv(214.8, 57.5%, 34.1%)
CMYK57.5%, 33.3%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,439,767
CSS custom property--colour: #253A57;

Brightness & contrast

Relative luminance0.04108WCAG 2.x, 0 is black and 1 is white
Perceived brightness57 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.53:1
Contrast with white11.53:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#DAC5A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E3C58no red cones; affects about 1% of men; ΔE 2.4 from the original
Deuteranopia#283756no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#0A4044no blue cones; rare, and affects men and women equally; ΔE 20.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.53:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 22.1Dim grey · ΔE 28.6Slate grey · ΔE 30.5Black · ΔE 31.3Steel blue · ΔE 31.4Light slate grey · ΔE 33.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 22.09, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#574225
Analogous#255357, #292557
Triadic#57253A, #3A5725
Split complementary#572925, #535725
Tetradic#572553, #574225, #255729

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7F9EC9
Lighter +30%#5C83B9
Lighter +20%#436A9F
Lighter +10%#34527B
Darker −10%#162233
Darker −20%#070A0F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#163867
Less saturated −25%#353C48

Channel breakdown

R37
G58
B87
Red37 (14.5%)
Green58 (22.7%)
Blue87 (34.1%)
Hue214.8°
Saturation (HSL)40.32%
Lightness24.31%
Dominant channelBlue
Hex per channelR 25 · G 3A · B 57

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 “253a57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.