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Colour

#FF6400

  • #FF6400
  • Orange
  • Dark
  • Nearest: Orange red

#FF6400 is a orange with RGB values 255, 100, 0 and HSL 24°, 100%, 50%. It is a dark colour, so black text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Orange red.

Colour values

#FF6400#FF6400
HEX#FF6400
RGBrgb(255, 100, 0)
RGB (0–1)1, 0.3922, 0
RGB percentages100%, 39.2%, 0%
HSLhsl(23.5, 100%, 50%)
HSV / HSBhsv(23.5, 100%, 100%)
CMYK0%, 60.8%, 100%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,737,280
CSS custom property--colour: #FF6400;

Brightness & contrast

Relative luminance0.30374WCAG 2.x, 0 is black and 1 is white
Perceived brightness159.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.07:1
Contrast with white2.97:1WCAG normal text: Fail
Contrast with black7.07:1WCAG normal text: AAA
Greyscale equivalent#7E7E7E
Inverted#009BFF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#928000no red cones; affects about 1% of men; ΔE 62.2 from the original
Deuteranopia#B8A300no green cones; the most common form, about 1% of men; ΔE 62.1 from the original
Tritanopia#FF3856no blue cones; rare, and affects men and women equally; ΔE 43.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.97:1WCAG large text: Fail
Contrast with black, large text7.07:1WCAG large text: AAA

Named colours

Orange red · ΔE 12.9Dark orange · ΔE 20.9Chocolate · ΔE 24.4Tomato · ΔE 24.8Red · ΔE 26Coral · ΔE 26.4
Nearest named CSS colourOrange red (#FF4500)ΔE 12.88, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#009BFF
Analogous#FF001C, #FFE300
Triadic#00FF64, #6400FF
Split complementary#00FFE3, #001CFF
Tetradic#1CFF00, #009BFF, #E300FF

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFE0CC
Lighter +30%#FFC199
Lighter +20%#FFA266
Lighter +10%#FF8333
Darker −10%#CC5000
Darker −20%#993C00
Darker −30%#662800
Darker −40%#331400
More saturated +25%#FF6400
Less saturated −25%#DF6B20

Channel breakdown

R255
G100
B0
Red255 (100%)
Green100 (39.2%)
Blue0 (0%)
Hue23.53°
Saturation (HSL)100%
Lightness50%
Dominant channelRed
Hex per channelR FF · G 64 · B 00

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Every value on this page was computed from “ff6400” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.