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Colour

#00257E

  • #00257E
  • Blue
  • Dark
  • Nearest: Midnight blue

#00257E is a blue with RGB values 0, 37, 126 and HSL 222°, 100%, 25%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00257E#00257E
HEX#00257E
RGBrgb(0, 37, 126)
RGB (0–1)0, 0.1451, 0.4941
RGB percentages0%, 14.5%, 49.4%
HSLhsl(222.4, 100%, 24.7%)
HSV / HSBhsv(222.4, 100%, 49.4%)
CMYK100%, 70.6%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,598
CSS custom property--colour: #00257E;

Brightness & contrast

Relative luminance0.02829WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.41:1
Contrast with white13.41:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#FFDA81

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003581no red cones; affects about 1% of men; ΔE 12.7 from the original
Deuteranopia#00297Cno green cones; the most common form, about 1% of men; ΔE 4.6 from the original
Tritanopia#003E4Eno blue cones; rare, and affects men and women equally; ΔE 54.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.41:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 6.3Dark slateblue · ΔE 15.8Rebecca purple · ΔE 21.3Navy · ΔE 24.1Indigo · ΔE 24.2Slate blue · ΔE 27.8
Nearest named CSS colourMidnight blue (#191970)ΔE 6.35, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7E5900
Analogous#00647E, #1A007E
Triadic#7E0025, #257E00
Split complementary#7E1A00, #647E00
Tetradic#7E0064, #7E5900, #007E1A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4B80FF
Lighter +30%#185CFF
Lighter +20%#0043E4
Lighter +10%#0034B1
Darker −10%#00164B
Darker −20%#000718
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00257E
Less saturated −25%#102B6E

Channel breakdown

R0
G37
B126
Red0 (0%)
Green37 (14.5%)
Blue126 (49.4%)
Hue222.38°
Saturation (HSL)100%
Lightness24.71%
Dominant channelBlue
Hex per channelR 00 · G 25 · B 7E

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Every value on this page was computed from “00257e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.