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Recognised as Colour

#100D2A

  • #100D2A
  • Blue
  • Dark
  • Nearest: Black

#100D2A is a blue with RGB values 16, 13, 42 and HSL 246°, 53%, 11%. It is a dark colour, so white text on it reaches 18.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#100D2A#100D2A
HEX#100D2A
RGBrgb(16, 13, 42)
RGB (0–1)0.0627, 0.051, 0.1647
RGB percentages6.3%, 5.1%, 16.5%
HSLhsl(246.2, 52.7%, 10.8%)
HSV / HSBhsv(246.2, 69%, 16.5%)
CMYK61.9%, 69%, 0%, 83.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,051,946
CSS custom property--colour: #100D2A;

Brightness & contrast

Relative luminance0.00565WCAG 2.x, 0 is black and 1 is white
Perceived brightness19.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.87:1
Contrast with white18.87:1WCAG normal text: AAA
Contrast with black1.11:1WCAG normal text: Fail
Greyscale equivalent#101010
Inverted#EFF2D5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#01122Bno red cones; affects about 1% of men; ΔE 6.4 from the original
Deuteranopia#001029no green cones; the most common form, about 1% of men; ΔE 6.4 from the original
Tritanopia#071419no blue cones; rare, and affects men and women equally; ΔE 18.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.87:1WCAG large text: AAA
Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Black · ΔE 21.6Dark slate grey · ΔE 37Dark slateblue · ΔE 38.5Midnight blue · ΔE 39.5Dim grey · ΔE 44.6Slate grey · ΔE 49.8
Nearest named CSS colourBlack (#000000)ΔE 21.58, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#272A0D
Analogous#0D182A, #1F0D2A
Triadic#2A100D, #0D2A10
Split complementary#2A1F0D, #182A0D
Tetradic#2A0D18, #272A0D, #0D2A1F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4D3FC4
Lighter +30%#3D319F
Lighter +20%#2E2578
Lighter +10%#1F1951
Darker −10%#010103
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B0631
Less saturated −25%#151423

Channel breakdown

R16
G13
B42
Red16 (6.3%)
Green13 (5.1%)
Blue42 (16.5%)
Hue246.21°
Saturation (HSL)52.73%
Lightness10.78%
Dominant channelBlue
Hex per channelR 10 · G 0D · B 2A

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Every value on this page was computed from “100d2a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.