Recognised as Colour

#331B01

#331B01
Orange
Dark
Nearest: Black

#331B01 is a orange with RGB values 51, 27, 1 and HSL 31°, 96%, 10%. It is a dark colour, so white text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#331B01#331B01

HEX#331B01

RGBrgb(51, 27, 1)

RGB (0–1)0.2, 0.1059, 0.0039

RGB percentages20%, 10.6%, 0.4%

HSLhsl(31.2, 96.2%, 10.2%)

HSV / HSBhsv(31.2, 98%, 20%)

CMYK0%, 47.1%, 98%, 80%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,349,249

CSS custom property--colour: #331B01;

Brightness & contrast

Relative luminance0.0149WCAG 2.x, 0 is black and 1 is white

Perceived brightness34.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.18:1

Contrast with white16.18:1WCAG normal text: AAA

Contrast with black1.3:1WCAG normal text: Fail

Greyscale equivalent#1E1E1E

Inverted#CCE4FE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#231D00no red cones; affects about 1% of men; ΔE 11.1 from the original

Deuteranopia#282301no green cones; the most common form, about 1% of men; ΔE 11.9 from the original

Tritanopia#391516no blue cones; rare, and affects men and women equally; ΔE 13.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.18:1WCAG large text: AAA

Contrast with black, large text1.3:1WCAG large text: Fail

Named colours

Black · ΔE 24.2 Dark slate grey · ΔE 35.8 Saddle brown · ΔE 37.7 Dim grey · ΔE 38 Sienna · ΔE 40.9 Dark olivegreen · ΔE 42.7

Nearest named CSS colourBlack (#000000)ΔE 24.16, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#011933

Analogous#330201, #323301

Triadic#01331B, #1B0133

Split complementary#013233, #020133

Tetradic#013302, #011933, #330132

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FA8506

Lighter +30%#C96A04

Lighter +20%#975003

Lighter +10%#653502

Darker −10%#010100

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#341B00

Less saturated −25%#2D1B07

Channel breakdown

R51

G27

Red51 (20%)

Green27 (10.6%)

Blue1 (0.4%)

Hue31.2°

Saturation (HSL)96.15%

Lightness10.2%

Dominant channelRed

Hex per channelR 33 · G 1B · B 01

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#331B01

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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