#2F4FB3#2F4FB3

#2F4FB3 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.4% C 0.163 H 266.5°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#2F4FB3
RGB	rgb(47, 79, 179)
HSL	hsl(225, 58%, 44%)
HSV	hsv(225, 74%, 70%)
CMYK	cmyk(73.7%, 55.9%, 0%, 29.8%)
CIE-LAB	lab(36.84, 23.80, -56.57)
CIE-LCH	lch(36.84, 61.37, 292.82°)
OKLab	oklab(46.43% -0.0099 -0.163)
OKLCH	oklch(46.43% 0.163 266.5)
XYZ	xyz(12.1021, 9.4497, 43.8252)
Luminance	0.0945 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F4FB3 #B3932F

analogous

#2F91B3 #2F4FB3 #512FB3

triadic

#2F4FB3 #B32F4F #4FB32F

tetradic

#2F4FB3 #B32F91 #B3932F #2FB351

square

#2F4FB3 #B32F91 #B3932F #2FB351

split-complementary

#2F4FB3 #B3512F #91B32F

monochromatic

#162452 #223A83 #2F4FB3 #4F6ED1 #7F96DD

Accessibility & contrast

On white

7.27

#2F4FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#2F4FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F4FB3

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F4FB3	#FFFFFF	#000000	##FFFFFF
##2F4FB3	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB6

Deuteranopia (green-blind)

#0051B1

Tritanopia (blue-blind)

#006879

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2f4fb3;
/* rgb */ color: rgb(47, 79, 179);
/* oklch */ color: oklch(46.4% 0.163 266.5);

Tailwind

colors: {
  custom: {
    50: '#7a7fca',
    500: '#2f4fb3',
    950: '#000000',
  },
}

SCSS

$custom: #2f4fb3;
$custom-light: #7a7fca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f4fb3",
  "rgb": {
    "r": 47,
    "g": 79,
    "b": 179
  },
  "hsl": {
    "h": 225.455,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46426,
    "c": 0.16334,
    "h": 266.5
  },
  "luminance": 0.09451
}

Semantic roles & 50–950 ramp

primary

#2F4FB3

secondary

#C6B378

accent

#BC46E2

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #2F4FB3

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

Preview Lab → · Contrast checker → · Palette generator →