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Colour

#010307

  • #010307
  • Blue
  • Dark
  • Nearest: Black

#010307 is a blue with RGB values 1, 3, 7 and HSL 220°, 75%, 2%. It is a dark colour, so white text on it reaches 20.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#010307#010307
HEX#010307
RGBrgb(1, 3, 7)
RGB (0–1)0.0039, 0.0118, 0.0275
RGB percentages0.4%, 1.2%, 2.7%
HSLhsl(220, 75%, 1.6%)
HSV / HSBhsv(220, 85.7%, 2.7%)
CMYK85.7%, 57.1%, 0%, 97.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer66,311
CSS custom property--colour: #010307;

Brightness & contrast

Relative luminance0.00087WCAG 2.x, 0 is black and 1 is white
Perceived brightness3.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.64:1
Contrast with white20.64:1WCAG normal text: AAA
Contrast with black1.02:1WCAG normal text: Fail
Greyscale equivalent#030303
Inverted#FEFCF8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#020307no red cones; affects about 1% of men; ΔE 0.3 from the original
Deuteranopia#010307no green cones; the most common form, about 1% of men; ΔE 0 from the original
Tritanopia#000404no blue cones; rare, and affects men and women equally; ΔE 1.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.64:1WCAG large text: AAA
Contrast with black, large text1.02:1WCAG large text: Fail

Named colours

Black · ΔE 1.9Dark slate grey · ΔE 32.7Dim grey · ΔE 43.7Gray · ΔE 52.8Slate grey · ΔE 52.8Dark olivegreen · ΔE 55.8
Nearest named CSS colourBlack (#000000)ΔE 1.87, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#070501
Analogous#010607, #020107
Triadic#070103, #030701
Split complementary#070201, #060701
Tetradic#070106, #070501, #010702

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1B50BA
Lighter +30%#143C8D
Lighter +20%#0E2960
Lighter +10%#071634
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000308
Less saturated −25%#020306

Channel breakdown

R1
G3
B7
Red1 (0.4%)
Green3 (1.2%)
Blue7 (2.7%)
Hue220°
Saturation (HSL)75%
Lightness1.57%
Dominant channelBlue
Hex per channelR 01 · G 03 · B 07

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Every value on this page was computed from “hex 010307” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.