#2F307A#2F307A

#2F307A is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.5% C 0.123 H 277.5°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#2F307A
RGB	rgb(47, 48, 122)
HSL	hsl(239, 44%, 33%)
HSV	hsv(239, 61%, 48%)
CMYK	cmyk(61.5%, 60.7%, 0%, 52.2%)
CIE-LAB	lab(24.07, 23.45, -42.48)
CIE-LCH	lch(24.07, 48.52, 298.90°)
OKLab	oklab(35.49% 0.0161 -0.122)
OKLCH	oklch(35.49% 0.123 277.5)
XYZ	xyz(5.7410, 4.1230, 18.9019)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F307A #7A792F

analogous

#2F557A #2F307A #532F7A

triadic

#2F307A #7A2F30 #307A2F

tetradic

#2F307A #7A2F55 #7A792F #2F7A53

square

#2F307A #7A2F55 #7A792F #2F7A53

split-complementary

#2F307A #7A532F #557A2F

monochromatic

#0D0D22 #1E1F4E #2F307A #4041A6 #6162C2

Accessibility & contrast

On white

11.51

#2F307A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#2F307A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F307A

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F307A	#FFFFFF	#000000	##FFFFFF
##2F307A	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7C

Deuteranopia (green-blind)

#003678

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2f307a;
/* rgb */ color: rgb(47, 48, 122);
/* oklch */ color: oklch(35.5% 0.123 277.5);

Tailwind

colors: {
  custom: {
    50: '#7068a1',
    500: '#2f307a',
    950: '#000000',
  },
}

SCSS

$custom: #2f307a;
$custom-light: #7068a1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f307a",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 122
  },
  "hsl": {
    "h": 239.2,
    "s": 44.379,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35491,
    "c": 0.12305,
    "h": 277.5
  },
  "luminance": 0.04123
}

Semantic roles & 50–950 ramp

primary

#2F307A

secondary

#A9A85C

accent

#D254D4

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2F307A

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

Preview Lab → · Contrast checker → · Palette generator →