#2F3C8A#2F3C8A

#2F3C8A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.130 H 271.9°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#2F3C8A
RGB	rgb(47, 60, 138)
HSL	hsl(231, 49%, 36%)
HSV	hsv(231, 66%, 54%)
CMYK	cmyk(65.9%, 56.5%, 0%, 45.9%)
CIE-LAB	lab(28.57, 21.16, -45.22)
CIE-LCH	lch(28.57, 49.92, 295.08°)
OKLab	oklab(39.23% 0.0043 -0.1299)
OKLCH	oklch(39.23% 0.13 271.9)
XYZ	xyz(7.3741, 5.6704, 24.7457)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3C8A #8A7D2F

analogous

#2F6A8A #2F3C8A #502F8A

triadic

#2F3C8A #8A2F3C #3C8A2F

tetradic

#2F3C8A #8A2F6A #8A7D2F #2F8A50

square

#2F3C8A #8A2F6A #8A7D2F #2F8A50

split-complementary

#2F3C8A #8A502F #6A8A2F

monochromatic

#10142F #1F285C #2F3C8A #3F50B8 #6876CC

Accessibility & contrast

On white

9.84

#2F3C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2F3C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3C8A

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3C8A	#FFFFFF	#000000	##FFFFFF
##2F3C8A	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488D

Deuteranopia (green-blind)

#003F88

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f3c8a;
/* rgb */ color: rgb(47, 60, 138);
/* oklch */ color: oklch(39.2% 0.130 271.9);

Tailwind

colors: {
  custom: {
    50: '#7271ad',
    500: '#2f3c8a',
    950: '#000000',
  },
}

SCSS

$custom: #2f3c8a;
$custom-light: #7271ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3c8a",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 138
  },
  "hsl": {
    "h": 231.429,
    "s": 49.189,
    "l": 36.275
  },
  "oklch": {
    "l": 0.39232,
    "c": 0.12998,
    "h": 271.9
  },
  "luminance": 0.05671
}

Semantic roles & 50–950 ramp

primary

#2F3C8A

secondary

#B3A762

accent

#C54FD9

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F3C8A

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

Preview Lab → · Contrast checker → · Palette generator →