#2F3D9B#2F3D9B

#2F3D9B is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.9% C 0.153 H 271.4°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#2F3D9B
RGB	rgb(47, 61, 155)
HSL	hsl(232, 53%, 40%)
HSV	hsv(232, 70%, 61%)
CMYK	cmyk(69.7%, 60.6%, 0%, 39.2%)
CIE-LAB	lab(30.18, 26.78, -53.03)
CIE-LCH	lch(30.18, 59.41, 296.80°)
OKLab	oklab(40.86% 0.0038 -0.1529)
OKLCH	oklch(40.86% 0.153 271.4)
XYZ	xyz(8.7554, 6.3075, 31.7601)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3D9B #9B8D2F

analogous

#2F739B #2F3D9B #572F9B

triadic

#2F3D9B #9B2F3D #3D9B2F

tetradic

#2F3D9B #9B2F73 #9B8D2F #2F9B57

square

#2F3D9B #9B2F73 #9B8D2F #2F9B57

split-complementary

#2F3D9B #9B572F #739B2F

monochromatic

#13183D #212B6C #2F3D9B #4253C6 #717DD4

Accessibility & contrast

On white

9.29

#2F3D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2F3D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3D9B

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3D9B	#FFFFFF	#000000	##FFFFFF
##2F3D9B	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9E

Deuteranopia (green-blind)

#004299

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f3d9b;
/* rgb */ color: rgb(47, 61, 155);
/* oklch */ color: oklch(40.9% 0.153 271.4);

Tailwind

colors: {
  custom: {
    50: '#7672b9',
    500: '#2f3d9b',
    950: '#000000',
  },
}

SCSS

$custom: #2f3d9b;
$custom-light: #7672b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3d9b",
  "rgb": {
    "r": 47,
    "g": 61,
    "b": 155
  },
  "hsl": {
    "h": 232.222,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40855,
    "c": 0.15292,
    "h": 271.4
  },
  "luminance": 0.06308
}

Semantic roles & 50–950 ramp

primary

#2F3D9B

secondary

#BBB16A

accent

#CA4BDD

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F3D9B

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

Preview Lab → · Contrast checker → · Palette generator →