Colour

#B21A4C

#B21A4C
Red
Dark
Nearest: Brown

#B21A4C is a red with RGB values 178, 26, 76 and HSL 340°, 75%, 40%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#B21A4C#B21A4C

HEX#B21A4C

RGBrgb(178, 26, 76)

RGB (0–1)0.698, 0.102, 0.298

RGB percentages69.8%, 10.2%, 29.8%

HSLhsl(340.3, 74.5%, 40%)

HSV / HSBhsv(340.3, 85.4%, 69.8%)

CMYK0%, 85.4%, 57.3%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,672,140

CSS custom property--colour: #B21A4C;

Brightness & contrast

Relative luminance0.10726WCAG 2.x, 0 is black and 1 is white

Perceived brightness102.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.68:1

Contrast with white6.68:1WCAG normal text: AA

Contrast with black3.15:1WCAG normal text: Fail

Greyscale equivalent#3E3E3E

Inverted#4DE5B3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#47494Dno red cones; affects about 1% of men; ΔE 62.2 from the original

Deuteranopia#6E6748no green cones; the most common form, about 1% of men; ΔE 63 from the original

Tritanopia#C30031no blue cones; rare, and affects men and women equally; ΔE 21.1 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.68:1WCAG large text: AAA

Contrast with black, large text3.15:1WCAG large text: AA

Named colours

Brown · ΔE 21.5 Indian red · ΔE 23.2 Crimson · ΔE 25.7 Firebrick · ΔE 26.2 Pale violetred · ΔE 28.3 Medium violet red · ΔE 29.7

Nearest named CSS colourBrown (#A52A2A)ΔE 21.46, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1AB280

Analogous#B21A98, #B2341A

Triadic#4CB21A, #1A4CB2

Split complementary#1AB234, #1A98B2

Tetradic#98B21A, #1AB280, #341AB2

Tints, shades & saturation

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

Lighter +40%#F2A6BF

Lighter +30%#EC799F

Lighter +20%#E54D7F

Lighter +10%#DF215F

Darker −10%#861339

Darker −20%#590D26

Darker −30%#2D0713

Darker −40%#000000

More saturated +25%#CC0043

Less saturated −25%#993355

Channel breakdown

R178

G26

B76

Red178 (69.8%)

Green26 (10.2%)

Blue76 (29.8%)

Hue340.26°

Saturation (HSL)74.51%

Lightness40%

Dominant channelRed

Hex per channelR B2 · G 1A · B 4C

Keep nerding

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

#B21A4C

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

Nerdulate something else