#2F347B#2F347B

#2F347B is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.4% C 0.119 H 275.7°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#2F347B
RGB	rgb(47, 52, 123)
HSL	hsl(236, 45%, 33%)
HSV	hsv(236, 62%, 48%)
CMYK	cmyk(61.8%, 57.7%, 0%, 51.8%)
CIE-LAB	lab(25.23, 21.09, -41.24)
CIE-LCH	lch(25.23, 46.32, 297.09°)
OKLab	oklab(36.37% 0.0119 -0.1183)
OKLCH	oklch(36.37% 0.119 275.7)
XYZ	xyz(5.9743, 4.4899, 19.2869)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F347B #7B762F

analogous

#2F5A7B #2F347B #502F7B

triadic

#2F347B #7B2F34 #347B2F

tetradic

#2F347B #7B2F5A #7B762F #2F7B50

square

#2F347B #7B2F5A #7B762F #2F7B50

split-complementary

#2F347B #7B502F #5A7B2F

monochromatic

#0D0F22 #1E214F #2F347B #4047A7 #6268C3

Accessibility & contrast

On white

11.06

#2F347B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2F347B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F347B

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F347B	#FFFFFF	#000000	##FFFFFF
##2F347B	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7D

Deuteranopia (green-blind)

#00397A

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2f347b;
/* rgb */ color: rgb(47, 52, 123);
/* oklch */ color: oklch(36.4% 0.119 275.7);

Tailwind

colors: {
  custom: {
    50: '#706ba2',
    500: '#2f347b',
    950: '#000000',
  },
}

SCSS

$custom: #2f347b;
$custom-light: #706ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#2f347b",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 123
  },
  "hsl": {
    "h": 236.053,
    "s": 44.706,
    "l": 33.333
  },
  "oklch": {
    "l": 0.36374,
    "c": 0.1189,
    "h": 275.7
  },
  "luminance": 0.0449
}

Semantic roles & 50–950 ramp

primary

#2F347B

secondary

#AAA55C

accent

#CC53D4

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2F347B

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

Preview Lab → · Contrast checker → · Palette generator →