Recognised as Colour

#AB251E

#AB251E
Red
Dark
Nearest: Firebrick

#AB251E is a red with RGB values 171, 37, 30 and HSL 3°, 70%, 39%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#AB251E#AB251E

HEX#AB251E

RGBrgb(171, 37, 30)

RGB (0–1)0.6706, 0.1451, 0.1176

RGB percentages67.1%, 14.5%, 11.8%

HSLhsl(3, 70.1%, 39.4%)

HSV / HSBhsv(3, 82.5%, 67.1%)

CMYK0%, 78.4%, 82.5%, 32.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,216,158

CSS custom property--colour: #AB251E;

Brightness & contrast

Relative luminance0.10075WCAG 2.x, 0 is black and 1 is white

Perceived brightness98.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.97:1

Contrast with white6.97:1WCAG normal text: AA

Contrast with black3.01:1WCAG normal text: Fail

Greyscale equivalent#414141

Inverted#54DAE1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4F471Bno red cones; affects about 1% of men; ΔE 57.4 from the original

Deuteranopia#706417no green cones; the most common form, about 1% of men; ΔE 57.4 from the original

Tritanopia#BD0025no blue cones; rare, and affects men and women equally; ΔE 11.9 from the original

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

Contrast with white, large text6.97:1WCAG large text: AAA

Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Firebrick · ΔE 3.4 Brown · ΔE 8.3 Dark red · ΔE 10.5 Maroon · ΔE 13.3 Crimson · ΔE 20.8 Indian red · ΔE 23.7

Nearest named CSS colourFirebrick (#B22222)ΔE 3.36, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1EA4AB

Analogous#AB1E5D, #AB6C1E

Triadic#1EAB25, #251EAB

Split complementary#1EAB6C, #1E5DAB

Tetradic#5DAB1E, #1EA4AB, #6C1EAB

Tints, shades & saturation

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

Lighter +40%#EFA9A6

Lighter +30%#E8807A

Lighter +20%#E0564F

Lighter +10%#D62E26

Darker −10%#801C16

Darker −20%#54120F

Darker −30%#290907

Darker −40%#000000

More saturated +25%#C40E05

Less saturated −25%#923C37

Channel breakdown

R171

G37

B30

Red171 (67.1%)

Green37 (14.5%)

Blue30 (11.8%)

Hue2.98°

Saturation (HSL)70.15%

Lightness39.41%

Dominant channelRed

Hex per channelR AB · G 25 · B 1E

Keep nerding

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

#AB251E

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