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Recognised as Colour

#255B4D

  • #255B4D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#255B4D is a cyan with RGB values 37, 91, 77 and HSL 164°, 42%, 25%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#255B4D#255B4D
HEX#255B4D
RGBrgb(37, 91, 77)
RGB (0–1)0.1451, 0.3569, 0.302
RGB percentages14.5%, 35.7%, 30.2%
HSLhsl(164.4, 42.2%, 25.1%)
HSV / HSBhsv(164.4, 59.3%, 35.7%)
CMYK59.3%, 0%, 15.4%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,448,205
CSS custom property--colour: #255B4D;

Brightness & contrast

Relative luminance0.08411WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.83:1
Contrast with white7.83:1WCAG normal text: AAA
Contrast with black2.68:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#DAA4B2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#58554Cno red cones; affects about 1% of men; ΔE 21.4 from the original
Deuteranopia#504F4Eno green cones; the most common form, about 1% of men; ΔE 22 from the original
Tritanopia#065C57no blue cones; rare, and affects men and women equally; ΔE 6.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.83:1WCAG large text: AAA
Contrast with black, large text2.68:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 12.4Teal · ΔE 18.9Dark cyan · ΔE 22.8Dim grey · ΔE 23.9Cadetblue · ΔE 28.3Gray · ΔE 28.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.43, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B2533
Analogous#255B32, #254E5B
Triadic#4D255B, #5B4D25
Split complementary#5B254E, #5B3225
Tetradic#32255B, #5B2533, #4E5B25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#80CCB8
Lighter +30%#5CBDA4
Lighter +20%#42A48A
Lighter +10%#347F6C
Darker −10%#16372E
Darker −20%#081210
Darker −30%#000000
Darker −40%#000000
More saturated +25%#156B55
Less saturated −25%#354B45

Channel breakdown

R37
G91
B77
Red37 (14.5%)
Green91 (35.7%)
Blue77 (30.2%)
Hue164.44°
Saturation (HSL)42.19%
Lightness25.1%
Dominant channelGreen
Hex per channelR 25 · G 5B · B 4D

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Every value on this page was computed from “255b4d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.