#2F539B#2F539B

#2F539B is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.5% C 0.125 H 262.5°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#2F539B
RGB	rgb(47, 83, 155)
HSL	hsl(220, 53%, 40%)
HSV	hsv(220, 70%, 61%)
CMYK	cmyk(69.7%, 46.5%, 0%, 39.2%)
CIE-LAB	lab(36.28, 12.09, -43.15)
CIE-LCH	lch(36.28, 44.81, 285.65°)
OKLab	oklab(45.47% -0.0162 -0.1235)
OKLCH	oklch(45.47% 0.125 262.5)
XYZ	xyz(10.1798, 9.1564, 32.2349)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F539B #9B772F

analogous

#2F899B #2F539B #412F9B

triadic

#2F539B #9B2F53 #539B2F

tetradic

#2F539B #9B2F89 #9B772F #2F9B41

square

#2F539B #9B2F89 #9B772F #2F9B41

split-complementary

#2F539B #9B412F #899B2F

monochromatic

#13213D #213A6C #2F539B #426EC6 #7192D4

Accessibility & contrast

On white

7.42

#2F539B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#2F539B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F539B

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F539B	#FFFFFF	#000000	##FFFFFF
##2F539B	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5B9E

Deuteranopia (green-blind)

#1A519A

Tritanopia (blue-blind)

#00646F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2f539b;
/* rgb */ color: rgb(47, 83, 155);
/* oklch */ color: oklch(45.5% 0.125 262.5);

Tailwind

colors: {
  custom: {
    50: '#7482b9',
    500: '#2f539b',
    950: '#000000',
  },
}

SCSS

$custom: #2f539b;
$custom-light: #7482b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f539b",
  "rgb": {
    "r": 47,
    "g": 83,
    "b": 155
  },
  "hsl": {
    "h": 220,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.45473,
    "c": 0.12456,
    "h": 262.5
  },
  "luminance": 0.09157
}

Semantic roles & 50–950 ramp

primary

#2F539B

secondary

#BBA06A

accent

#AC4BDD

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #2F539B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →