#2F4E9B#2F4E9B

#2F4E9B is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.4% C 0.131 H 265.0°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#2F4E9B
RGB	rgb(47, 78, 155)
HSL	hsl(223, 53%, 40%)
HSV	hsv(223, 70%, 61%)
CMYK	cmyk(69.7%, 49.7%, 0%, 39.2%)
CIE-LAB	lab(34.84, 15.41, -45.47)
CIE-LCH	lch(34.84, 48.01, 288.72°)
OKLab	oklab(44.37% -0.0114 -0.1304)
OKLCH	oklch(44.37% 0.131 265)
XYZ	xyz(9.8110, 8.4187, 32.1119)
Luminance	0.0842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F4E9B #9B7C2F

analogous

#2F849B #2F4E9B #462F9B

triadic

#2F4E9B #9B2F4E #4E9B2F

tetradic

#2F4E9B #9B2F84 #9B7C2F #2F9B46

square

#2F4E9B #9B2F84 #9B7C2F #2F9B46

split-complementary

#2F4E9B #9B462F #849B2F

monochromatic

#131F3D #21366C #2F4E9B #4267C6 #718DD4

Accessibility & contrast

On white

7.82

#2F4E9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#2F4E9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F4E9B

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F4E9B	#FFFFFF	#000000	##FFFFFF
##2F4E9B	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24579E

Deuteranopia (green-blind)

#044D99

Tritanopia (blue-blind)

#00606D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #2f4e9b;
/* rgb */ color: rgb(47, 78, 155);
/* oklch */ color: oklch(44.4% 0.131 265.0);

Tailwind

colors: {
  custom: {
    50: '#757fb9',
    500: '#2f4e9b',
    950: '#000000',
  },
}

SCSS

$custom: #2f4e9b;
$custom-light: #757fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f4e9b",
  "rgb": {
    "r": 47,
    "g": 78,
    "b": 155
  },
  "hsl": {
    "h": 222.778,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.44368,
    "c": 0.13089,
    "h": 265
  },
  "luminance": 0.0842
}

Semantic roles & 50–950 ramp

primary

#2F4E9B

secondary

#BBA46A

accent

#B34BDD

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #2F4E9B

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

Preview Lab → · Contrast checker → · Palette generator →