Colour

#FA581B

#FA581B
Orange
Dark
Nearest: Orange red

#FA581B is a orange with RGB values 250, 88, 27 and HSL 16°, 96%, 54%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FA581B#FA581B

HEX#FA581B

RGBrgb(250, 88, 27)

RGB (0–1)0.9804, 0.3451, 0.1059

RGB percentages98%, 34.5%, 10.6%

HSLhsl(16.4, 95.7%, 54.3%)

HSV / HSBhsv(16.4, 89.2%, 98%)

CMYK0%, 64.8%, 89.2%, 2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,406,555

CSS custom property--colour: #FA581B;

Brightness & contrast

Relative luminance0.27383WCAG 2.x, 0 is black and 1 is white

Perceived brightness152.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.48:1

Contrast with white3.24:1WCAG normal text: Fail

Contrast with black6.48:1WCAG normal text: AA

Greyscale equivalent#767676

Inverted#05A7E4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#88780Ano red cones; affects about 1% of men; ΔE 65.3 from the original

Deuteranopia#B09C0Cno green cones; the most common form, about 1% of men; ΔE 65.5 from the original

Tritanopia#FF244Eno blue cones; rare, and affects men and women equally; ΔE 34.4 from the original

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

Contrast with white, large text3.24:1WCAG large text: AA

Contrast with black, large text6.48:1WCAG large text: AAA

Named colours

Orange red · ΔE 10.3 Tomato · ΔE 17 Red · ΔE 21.9 Coral · ΔE 22.5 Chocolate · ΔE 23.5 Dark orange · ΔE 27.7

Nearest named CSS colourOrange red (#FF4500)ΔE 10.31, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BBDFA

Analogous#FA1B4D, #FAC81B

Triadic#1BFA58, #581BFA

Split complementary#1BFAC7, #1B4EFA

Tetradic#4DFA1B, #1BBDFA, #C71BFA

Tints, shades & saturation

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

Lighter +40%#FEEAE3

Lighter +30%#FDC6B1

Lighter +20%#FCA17F

Lighter +10%#FB7D4D

Darker −10%#DD4005

Darker −20%#AB3204

Darker −30%#792303

Darker −40%#471502

More saturated +25%#FF5616

Less saturated −25%#DD6538

Channel breakdown

R250

G88

B27

Red250 (98%)

Green88 (34.5%)

Blue27 (10.6%)

Hue16.41°

Saturation (HSL)95.71%

Lightness54.31%

Dominant channelRed

Hex per channelR FA · G 58 · B 1B

Keep nerding

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

#FA581B

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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