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Colour

#00357D

  • #00357D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00357D is a blue with RGB values 0, 53, 125 and HSL 215°, 100%, 25%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00357D#00357D
HEX#00357D
RGBrgb(0, 53, 125)
RGB (0–1)0, 0.2078, 0.4902
RGB percentages0%, 20.8%, 49%
HSLhsl(214.6, 100%, 24.5%)
HSV / HSBhsv(214.6, 100%, 49%)
CMYK100%, 57.6%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,693
CSS custom property--colour: #00357D;

Brightness & contrast

Relative luminance0.04027WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.63:1
Contrast with white11.63:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#FFCA82

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003E7Fno red cones; affects about 1% of men; ΔE 7.2 from the original
Deuteranopia#00337Cno green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#004753no blue cones; rare, and affects men and women equally; ΔE 44.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.63:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.9Midnight blue · ΔE 18.5Rebecca purple · ΔE 28.8Slate blue · ΔE 32.3Royal blue · ΔE 33.2Steel blue · ΔE 37.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7D4800
Analogous#00747D, #09007D
Triadic#7D0035, #357D00
Split complementary#7D0A00, #737D00
Tetradic#7D0074, #7D4800, #007D0A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4A97FF
Lighter +30%#1779FF
Lighter +20%#0060E3
Lighter +10%#004BB0
Darker −10%#001F4A
Darker −20%#000A17
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00357D
Less saturated −25%#10376D

Channel breakdown

R0
G53
B125
Red0 (0%)
Green53 (20.8%)
Blue125 (49%)
Hue214.56°
Saturation (HSL)100%
Lightness24.51%
Dominant channelBlue
Hex per channelR 00 · G 35 · B 7D

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Every value on this page was computed from “00357d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.