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Colour

#234A51

  • #234A51
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#234A51 is a cyan with RGB values 35, 74, 81 and HSL 189°, 40%, 23%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#234A51#234A51
HEX#234A51
RGBrgb(35, 74, 81)
RGB (0–1)0.1373, 0.2902, 0.3176
RGB percentages13.7%, 29%, 31.8%
HSLhsl(189.1, 39.7%, 22.7%)
HSV / HSBhsv(189.1, 56.8%, 31.8%)
CMYK56.8%, 8.6%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,312,785
CSS custom property--colour: #234A51;

Brightness & contrast

Relative luminance0.05849WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.68:1
Contrast with white9.68:1WCAG normal text: AAA
Contrast with black2.17:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#DCB5AE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#444851no red cones; affects about 1% of men; ΔE 12.4 from the original
Deuteranopia#3D4251no green cones; the most common form, about 1% of men; ΔE 13.4 from the original
Tritanopia#044D4Cno blue cones; rare, and affects men and women equally; ΔE 9.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.68:1WCAG large text: AAA
Contrast with black, large text2.17:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 5.2Dim grey · ΔE 21Slate grey · ΔE 25.7Teal · ΔE 25.9Gray · ΔE 28.4Light slate grey · ΔE 28.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 5.19, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#512A23
Analogous#235141, #233351
Triadic#51234A, #4A5123
Split complementary#512333, #514123
Tetradic#412351, #512A23, #335123

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7ABAC6
Lighter +30%#57A8B6
Lighter +20%#428B98
Lighter +10%#326B75
Darker −10%#14292D
Darker −20%#04090A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#15545F
Less saturated −25%#324042

Channel breakdown

R35
G74
B81
Red35 (13.7%)
Green74 (29%)
Blue81 (31.8%)
Hue189.13°
Saturation (HSL)39.66%
Lightness22.75%
Dominant channelBlue
Hex per channelR 23 · G 4A · B 51

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Every value on this page was computed from “234a51” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.