#2F4BB8#2F4BB8

#2F4BB8 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.0% C 0.175 H 267.8°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#2F4BB8
RGB	rgb(47, 75, 184)
HSL	hsl(228, 59%, 45%)
HSV	hsv(228, 74%, 72%)
CMYK	cmyk(74.5%, 59.2%, 0%, 27.8%)
CIE-LAB	lab(36.17, 28.30, -60.61)
CIE-LCH	lch(36.17, 66.89, 295.03°)
OKLab	oklab(46.05% -0.0067 -0.175)
OKLCH	oklch(46.05% 0.175 267.8)
XYZ	xyz(12.3371, 9.0959, 46.4436)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F4BB8 #B89C2F

analogous

#2F8FB8 #2F4BB8 #572FB8

triadic

#2F4BB8 #B82F4B #4BB82F

tetradic

#2F4BB8 #B82F8F #B89C2F #2FB857

square

#2F4BB8 #B82F8F #B89C2F #2FB857

split-complementary

#2F4BB8 #B8572F #8FB82F

monochromatic

#162357 #233787 #2F4BB8 #526CD3 #8295DF

Accessibility & contrast

On white

7.45

#2F4BB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#2F4BB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F4BB8

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F4BB8	#FFFFFF	#000000	##FFFFFF
##2F4BB8	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBC

Deuteranopia (green-blind)

#004FB6

Tritanopia (blue-blind)

#00667A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2f4bb8;
/* rgb */ color: rgb(47, 75, 184);
/* oklch */ color: oklch(46.0% 0.175 267.8);

Tailwind

colors: {
  custom: {
    50: '#7b7dce',
    500: '#2f4bb8',
    950: '#000000',
  },
}

SCSS

$custom: #2f4bb8;
$custom-light: #7b7dce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f4bb8",
  "rgb": {
    "r": 47,
    "g": 75,
    "b": 184
  },
  "hsl": {
    "h": 227.737,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46048,
    "c": 0.17509,
    "h": 267.8
  },
  "luminance": 0.09097
}

Semantic roles & 50–950 ramp

primary

#2F4BB8

secondary

#C8B87B

accent

#C245E2

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #2F4BB8

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

Preview Lab → · Contrast checker → · Palette generator →