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Recognised as Colour

#02377A

  • #02377A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#02377A is a blue with RGB values 2, 55, 122 and HSL 214°, 97%, 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 slateblue.

Colour values

#02377A#02377A
HEX#02377A
RGBrgb(2, 55, 122)
RGB (0–1)0.0078, 0.2157, 0.4784
RGB percentages0.8%, 21.6%, 47.8%
HSLhsl(213.5, 96.8%, 24.3%)
HSV / HSBhsv(213.5, 98.4%, 47.8%)
CMYK98.4%, 54.9%, 0%, 52.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer145,274
CSS custom property--colour: #02377A;

Brightness & contrast

Relative luminance0.0415WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.47:1
Contrast with white11.47:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#FDC885

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#013F7Cno red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#003579no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#004853no blue cones; rare, and affects men and women equally; ΔE 41.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.47:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.6Midnight blue · ΔE 21.7Rebecca purple · ΔE 31.5Steel blue · ΔE 34.6Slate blue · ΔE 34.8Royal blue · ΔE 35.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7A4502
Analogous#02737A, #09027A
Triadic#7A0237, #377A02
Split complementary#7A0902, #737A02
Tetradic#7A0273, #7A4502, #027A09

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4C9AFC
Lighter +30%#1A7DFB
Lighter +20%#0464DE
Lighter +10%#034EAC
Darker −10%#012048
Darker −20%#000A16
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00377C
Less saturated −25%#12396B

Channel breakdown

R2
G55
B122
Red2 (0.8%)
Green55 (21.6%)
Blue122 (47.8%)
Hue213.5°
Saturation (HSL)96.77%
Lightness24.31%
Dominant channelBlue
Hex per channelR 02 · G 37 · B 7A

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Every value on this page was computed from “02377a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.