#2F4BB3#2F4BB3

#2F4BB3 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.6% C 0.168 H 267.7°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#2F4BB3
RGB	rgb(47, 75, 179)
HSL	hsl(227, 58%, 44%)
HSV	hsv(227, 74%, 70%)
CMYK	cmyk(73.7%, 58.1%, 0%, 29.8%)
CIE-LAB	lab(35.77, 26.43, -58.30)
CIE-LCH	lch(35.77, 64.01, 294.39°)
OKLab	oklab(45.63% -0.0069 -0.1682)
OKLCH	oklch(45.63% 0.168 267.7)
XYZ	xyz(11.8222, 8.8899, 43.7320)
Luminance	0.0889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F4BB3 #B3972F

analogous

#2F8DB3 #2F4BB3 #552FB3

triadic

#2F4BB3 #B32F4B #4BB32F

tetradic

#2F4BB3 #B32F8D #B3972F #2FB355

square

#2F4BB3 #B32F8D #B3972F #2FB355

split-complementary

#2F4BB3 #B3552F #8DB32F

monochromatic

#162252 #223783 #2F4BB3 #4F6AD1 #7F93DD

Accessibility & contrast

On white

7.56

#2F4BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#2F4BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F4BB3

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F4BB3	#FFFFFF	#000000	##FFFFFF
##2F4BB3	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB7

Deuteranopia (green-blind)

#004EB1

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #2f4bb3;
/* rgb */ color: rgb(47, 75, 179);
/* oklch */ color: oklch(45.6% 0.168 267.7);

Tailwind

colors: {
  custom: {
    50: '#7a7ccb',
    500: '#2f4bb3',
    950: '#000000',
  },
}

SCSS

$custom: #2f4bb3;
$custom-light: #7a7ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f4bb3",
  "rgb": {
    "r": 47,
    "g": 75,
    "b": 179
  },
  "hsl": {
    "h": 227.273,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.45627,
    "c": 0.16833,
    "h": 267.7
  },
  "luminance": 0.08891
}

Semantic roles & 50–950 ramp

primary

#2F4BB3

secondary

#C6B678

accent

#C146E2

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #2F4BB3

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

Preview Lab → · Contrast checker → · Palette generator →