Nerdulator> put something in

Recognised as Colour

#EFA51B

  • #EFA51B
  • Orange
  • Dark
  • Nearest: Orange

#EFA51B is a orange with RGB values 239, 165, 27 and HSL 39°, 87%, 52%. It is a dark colour, so black text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Orange.

Colour values

#EFA51B#EFA51B
HEX#EFA51B
RGBrgb(239, 165, 27)
RGB (0–1)0.9373, 0.6471, 0.1059
RGB percentages93.7%, 64.7%, 10.6%
HSLhsl(39.1, 86.9%, 52.2%)
HSV / HSBhsv(39.1, 88.7%, 93.7%)
CMYK0%, 31%, 88.7%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,705,371
CSS custom property--colour: #EFA51B;

Brightness & contrast

Relative luminance0.4534WCAG 2.x, 0 is black and 1 is white
Perceived brightness182.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.07:1
Contrast with white2.09:1WCAG normal text: Fail
Contrast with black10.07:1WCAG normal text: AAA
Greyscale equivalent#ABABAB
Inverted#105AE4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C0A900no red cones; affects about 1% of men; ΔE 23.4 from the original
Deuteranopia#D1BB23no green cones; the most common form, about 1% of men; ΔE 24.5 from the original
Tritanopia#FF918Dno blue cones; rare, and affects men and women equally; ΔE 57.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.09:1WCAG large text: Fail
Contrast with black, large text10.07:1WCAG large text: AAA

Named colours

Orange · ΔE 9.1Goldenrod · ΔE 10.1Dark goldenrod · ΔE 18.8Dark orange · ΔE 19.9Sandy brown · ΔE 26.6Peru · ΔE 27.6
Nearest named CSS colourOrange (#FFA500)ΔE 9.1, clearly different but related
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B65EF
Analogous#EF3B1B, #CFEF1B
Triadic#1BEFA5, #A51BEF
Split complementary#1BCFEF, #3B1BEF
Tetradic#1BEF3B, #1B65EF, #EF1BCF

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FCF0DA
Lighter +30%#F9DDAA
Lighter +20%#F6CB7A
Lighter +10%#F2B84B
Darker −10%#C9880E
Darker −20%#99680B
Darker −30%#6A4707
Darker −40%#3A2704
More saturated +25%#FFAA0B
Less saturated −25%#D19C3A

Channel breakdown

R239
G165
B27
Red239 (93.7%)
Green165 (64.7%)
Blue27 (10.6%)
Hue39.06°
Saturation (HSL)86.89%
Lightness52.16%
Dominant channelRed
Hex per channelR EF · G A5 · B 1B

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “efa51b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.