#2F579B#2F579B

#2F579B is a mid, moderate blue. Relative luminance 0.098; OKLCH L 46.4% C 0.120 H 260.3°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#2F579B
RGB	rgb(47, 87, 155)
HSL	hsl(218, 53%, 40%)
HSV	hsv(218, 70%, 61%)
CMYK	cmyk(69.7%, 43.9%, 0%, 39.2%)
CIE-LAB	lab(37.46, 9.46, -41.28)
CIE-LCH	lch(37.46, 42.35, 282.91°)
OKLab	oklab(46.38% -0.0201 -0.1179)
OKLCH	oklch(46.38% 0.12 260.3)
XYZ	xyz(10.4948, 9.7862, 32.3398)
Luminance	0.0979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F579B #9B732F

analogous

#2F8D9B #2F579B #3D2F9B

triadic

#2F579B #9B2F57 #579B2F

tetradic

#2F579B #9B2F8D #9B732F #2F9B3D

square

#2F579B #9B2F8D #9B732F #2F9B3D

split-complementary

#2F579B #9B3D2F #8D9B2F

monochromatic

#13223D #213D6C #2F579B #4272C6 #7195D4

Accessibility & contrast

On white

7.10

#2F579B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#2F579B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F579B

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F579B	#FFFFFF	#000000	##FFFFFF
##2F579B	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365E9E

Deuteranopia (green-blind)

#24549A

Tritanopia (blue-blind)

#006771

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2f579b;
/* rgb */ color: rgb(47, 87, 155);
/* oklch */ color: oklch(46.4% 0.120 260.3);

Tailwind

colors: {
  custom: {
    50: '#7485b9',
    500: '#2f579b',
    950: '#000000',
  },
}

SCSS

$custom: #2f579b;
$custom-light: #7485b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f579b",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 155
  },
  "hsl": {
    "h": 217.778,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.46376,
    "c": 0.11962,
    "h": 260.3
  },
  "luminance": 0.09787
}

Semantic roles & 50–950 ramp

primary

#2F579B

secondary

#BB9D6A

accent

#A74BDD

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #2F579B

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

Preview Lab → · Contrast checker → · Palette generator →