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Recognised as Colour

#030A51

  • #030A51
  • Blue
  • Dark
  • Nearest: Midnight blue

#030A51 is a blue with RGB values 3, 10, 81 and HSL 235°, 93%, 16%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#030A51#030A51
HEX#030A51
RGBrgb(3, 10, 81)
RGB (0–1)0.0118, 0.0392, 0.3176
RGB percentages1.2%, 3.9%, 31.8%
HSLhsl(234.6, 92.9%, 16.5%)
HSV / HSBhsv(234.6, 96.3%, 31.8%)
CMYK96.3%, 87.7%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer199,249
CSS custom property--colour: #030A51;

Brightness & contrast

Relative luminance0.00831WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.01:1
Contrast with white18.01:1WCAG normal text: AAA
Contrast with black1.17:1WCAG normal text: Fail
Greyscale equivalent#0E0E0E
Inverted#FCF5AE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001B53no red cones; affects about 1% of men; ΔE 13.7 from the original
Deuteranopia#001250no green cones; the most common form, about 1% of men; ΔE 7 from the original
Tritanopia#00212Eno blue cones; rare, and affects men and women equally; ΔE 45.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.01:1WCAG large text: AAA
Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.5Dark slateblue · ΔE 23.4Indigo · ΔE 29.3Rebecca purple · ΔE 29.9Navy · ΔE 30.1Dark blue · ΔE 35.3
Nearest named CSS colourMidnight blue (#191970)ΔE 11.52, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#514A03
Analogous#033151, #230351
Triadic#51030A, #0A5103
Split complementary#512303, #315103
Tetradic#510331, #514A03, #035123

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#293BF7
Lighter +30%#081CE5
Lighter +20%#0716B3
Lighter +10%#051082
Darker −10%#010420
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000854
Less saturated −25%#0D1346

Channel breakdown

R3
G10
B81
Red3 (1.2%)
Green10 (3.9%)
Blue81 (31.8%)
Hue234.62°
Saturation (HSL)92.86%
Lightness16.47%
Dominant channelBlue
Hex per channelR 03 · G 0A · B 51

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Every value on this page was computed from “030a51” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.