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Recognised as Colour

#1F1003

  • #1F1003
  • Orange
  • Dark
  • Nearest: Black

#1F1003 is a orange with RGB values 31, 16, 3 and HSL 28°, 82%, 7%. It is a dark colour, so white text on it reaches 18.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1F1003#1F1003
HEX#1F1003
RGBrgb(31, 16, 3)
RGB (0–1)0.1216, 0.0627, 0.0118
RGB percentages12.2%, 6.3%, 1.2%
HSLhsl(27.9, 82.4%, 6.7%)
HSV / HSBhsv(27.9, 90.3%, 12.2%)
CMYK0%, 48.4%, 90.3%, 87.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,035,715
CSS custom property--colour: #1F1003;

Brightness & contrast

Relative luminance0.00668WCAG 2.x, 0 is black and 1 is white
Perceived brightness20.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.52:1
Contrast with white18.52:1WCAG normal text: AAA
Contrast with black1.13:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#E0EFFC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#151102no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#181503no green cones; the most common form, about 1% of men; ΔE 7.1 from the original
Tritanopia#230D0Dno blue cones; rare, and affects men and women equally; ΔE 6.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.52:1WCAG large text: AAA
Contrast with black, large text1.13:1WCAG large text: Fail

Named colours

Black · ΔE 11.3Dark slate grey · ΔE 32.6Dim grey · ΔE 39.6Gray · ΔE 48.5Dark olivegreen · ΔE 49.1Saddle brown · ΔE 50.3
Nearest named CSS colourBlack (#000000)ΔE 11.32, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#03121F
Analogous#1F0304, #1F1E03
Triadic#031F10, #10031F
Split complementary#031F1E, #03041F
Tetradic#041F03, #03121F, #1E031F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D97015
Lighter +30%#AB5810
Lighter +20%#7C400C
Lighter +10%#4E2807
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#221000
Less saturated −25%#1B1007

Channel breakdown

R31
G16
B3
Red31 (12.2%)
Green16 (6.3%)
Blue3 (1.2%)
Hue27.86°
Saturation (HSL)82.35%
Lightness6.67%
Dominant channelRed
Hex per channelR 1F · G 10 · B 03

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Every value on this page was computed from “1f1003” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.