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Colour

#251B00

  • #251B00
  • Orange
  • Dark
  • Nearest: Black

#251B00 is a orange with RGB values 37, 27, 0 and HSL 44°, 100%, 7%. It is a dark colour, so white text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#251B00#251B00
HEX#251B00
RGBrgb(37, 27, 0)
RGB (0–1)0.1451, 0.1059, 0
RGB percentages14.5%, 10.6%, 0%
HSLhsl(43.8, 100%, 7.3%)
HSV / HSBhsv(43.8, 100%, 14.5%)
CMYK0%, 27%, 100%, 85.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,431,744
CSS custom property--colour: #251B00;

Brightness & contrast

Relative luminance0.01177WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17:1
Contrast with white17:1WCAG normal text: AAA
Contrast with black1.24:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#DAE4FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#201B00no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#221D01no green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#291715no blue cones; rare, and affects men and women equally; ΔE 12.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17:1WCAG large text: AAA
Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Black · ΔE 18.7Dark slate grey · ΔE 31.2Dim grey · ΔE 37.4Dark olivegreen · ΔE 40.5Saddle brown · ΔE 44.9Gray · ΔE 45.9
Nearest named CSS colourBlack (#000000)ΔE 18.72, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#000A25
Analogous#250900, #1D2500
Triadic#00251B, #1B0025
Split complementary#001D25, #080025
Tetradic#002508, #000A25, #25001D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F1B000
Lighter +30%#BE8B00
Lighter +20%#8B6500
Lighter +10%#584000
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#251B00
Less saturated −25%#201905

Channel breakdown

R37
G27
B0
Red37 (14.5%)
Green27 (10.6%)
Blue0 (0%)
Hue43.78°
Saturation (HSL)100%
Lightness7.25%
Dominant channelRed
Hex per channelR 25 · G 1B · B 00

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Every value on this page was computed from “251b00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.