#2F559B#2F559B

#2F559B is a mid, vivid blue. Relative luminance 0.095; OKLCH L 45.9% C 0.122 H 261.5°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#2F559B
RGB	rgb(47, 85, 155)
HSL	hsl(219, 53%, 40%)
HSV	hsv(219, 70%, 61%)
CMYK	cmyk(69.7%, 45.2%, 0%, 39.2%)
CIE-LAB	lab(36.87, 10.77, -42.22)
CIE-LCH	lch(36.87, 43.57, 284.31°)
OKLab	oklab(45.92% -0.0181 -0.1207)
OKLCH	oklch(45.92% 0.122 261.5)
XYZ	xyz(10.3351, 9.4668, 32.2866)
Luminance	0.0947 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F559B #9B752F

analogous

#2F8B9B #2F559B #3F2F9B

triadic

#2F559B #9B2F55 #559B2F

tetradic

#2F559B #9B2F8B #9B752F #2F9B3F

square

#2F559B #9B2F8B #9B752F #2F9B3F

split-complementary

#2F559B #9B3F2F #8B9B2F

monochromatic

#13213D #213B6C #2F559B #4270C6 #7193D4

Accessibility & contrast

On white

7.26

#2F559B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#2F559B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F559B

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F559B	#FFFFFF	#000000	##FFFFFF
##2F559B	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335C9E

Deuteranopia (green-blind)

#1F529A

Tritanopia (blue-blind)

#006570

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2f559b;
/* rgb */ color: rgb(47, 85, 155);
/* oklch */ color: oklch(45.9% 0.122 261.5);

Tailwind

colors: {
  custom: {
    50: '#7484b9',
    500: '#2f559b',
    950: '#000000',
  },
}

SCSS

$custom: #2f559b;
$custom-light: #7484b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f559b",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 155
  },
  "hsl": {
    "h": 218.889,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.45923,
    "c": 0.12207,
    "h": 261.5
  },
  "luminance": 0.09468
}

Semantic roles & 50–950 ramp

primary

#2F559B

secondary

#BB9F6A

accent

#AA4BDD

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #2F559B

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

Preview Lab → · Contrast checker → · Palette generator →