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Recognised as Colour

#42599E

  • #42599E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#42599E is a blue with RGB values 66, 89, 158 and HSL 225°, 41%, 44%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#42599E#42599E
HEX#42599E
RGBrgb(66, 89, 158)
RGB (0–1)0.2588, 0.349, 0.6196
RGB percentages25.9%, 34.9%, 62%
HSLhsl(225, 41.1%, 43.9%)
HSV / HSBhsv(225, 58.2%, 62%)
CMYK58.2%, 43.7%, 0%, 38%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,348,318
CSS custom property--colour: #42599E;

Brightness & contrast

Relative luminance0.10772WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.66:1
Contrast with white6.66:1WCAG normal text: AA
Contrast with black3.15:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#BDA661

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3B61A1no red cones; affects about 1% of men; ΔE 6.1 from the original
Deuteranopia#2F589Dno green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#006874no blue cones; rare, and affects men and women equally; ΔE 42.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.66:1WCAG large text: AAA
Contrast with black, large text3.15:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 15.7Steel blue · ΔE 23Cornflower blue · ΔE 24.7Royal blue · ΔE 29.7Slate blue · ΔE 29.7Medium purple · ΔE 30.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.73, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9E8742
Analogous#42879E, #59429E
Triadic#9E4259, #599E42
Split complementary#9E5942, #879E42
Tetradic#9E4287, #9E8742, #429E59

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C5CEE7
Lighter +30%#A1AFD8
Lighter +20%#7D90C9
Lighter +10%#5971BA
Darker −10%#33457A
Darker −20%#243056
Darker −30%#151C32
Darker −40%#06080E
More saturated +25%#264BBA
Less saturated −25%#5E6782

Channel breakdown

R66
G89
B158
Red66 (25.9%)
Green89 (34.9%)
Blue158 (62%)
Hue225°
Saturation (HSL)41.07%
Lightness43.92%
Dominant channelBlue
Hex per channelR 42 · G 59 · B 9E

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Every value on this page was computed from “42599e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.