#2F4C8B#2F4C8B

#2F4C8B is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.8% C 0.110 H 263.8°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#2F4C8B
RGB	rgb(47, 76, 139)
HSL	hsl(221, 49%, 36%)
HSV	hsv(221, 66%, 55%)
CMYK	cmyk(66.2%, 45.3%, 0%, 45.5%)
CIE-LAB	lab(33.21, 10.72, -38.35)
CIE-LCH	lch(33.21, 39.82, 285.62°)
OKLab	oklab(42.79% -0.0119 -0.1095)
OKLCH	oklch(42.79% 0.11 263.8)
XYZ	xyz(8.4153, 7.6365, 25.4516)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F4C8B #8B6E2F

analogous

#2F7A8B #2F4C8B #402F8B

triadic

#2F4C8B #8B2F4C #4C8B2F

tetradic

#2F4C8B #8B2F7A #8B6E2F #2F8B40

square

#2F4C8B #8B2F7A #8B6E2F #2F8B40

split-complementary

#2F4C8B #8B402F #7A8B2F

monochromatic

#101A30 #20335D #2F4C8B #3E65B9 #6888CC

Accessibility & contrast

On white

8.31

#2F4C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2F4C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F4C8B

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F4C8B	#FFFFFF	#000000	##FFFFFF
##2F4C8B	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E538D

Deuteranopia (green-blind)

#1F4A8A

Tritanopia (blue-blind)

#005A64

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f4c8b;
/* rgb */ color: rgb(47, 76, 139);
/* oklch */ color: oklch(42.8% 0.110 263.8);

Tailwind

colors: {
  custom: {
    50: '#727dad',
    500: '#2f4c8b',
    950: '#000000',
  },
}

SCSS

$custom: #2f4c8b;
$custom-light: #727dad;
$custom-dark: #000000;

JSON

{
  "hex": "#2f4c8b",
  "rgb": {
    "r": 47,
    "g": 76,
    "b": 139
  },
  "hsl": {
    "h": 221.087,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.42786,
    "c": 0.11014,
    "h": 263.8
  },
  "luminance": 0.07637
}

Semantic roles & 50–950 ramp

primary

#2F4C8B

secondary

#B39A63

accent

#AD4FD9

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #2F4C8B

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

Preview Lab → · Contrast checker → · Palette generator →