#2F3B9C#2F3B9C

#2F3B9C is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.6% C 0.157 H 272.0°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#2F3B9C
RGB	rgb(47, 59, 156)
HSL	hsl(233, 54%, 40%)
HSV	hsv(233, 70%, 61%)
CMYK	cmyk(69.9%, 62.2%, 0%, 38.8%)
CIE-LAB	lab(29.74, 28.47, -54.34)
CIE-LCH	lch(29.74, 61.35, 297.65°)
OKLab	oklab(40.56% 0.0054 -0.1567)
OKLCH	oklch(40.56% 0.157 272)
XYZ	xyz(8.7350, 6.1317, 32.1693)
Luminance	0.0613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3B9C #9C902F

analogous

#2F729C #2F3B9C #592F9C

triadic

#2F3B9C #9C2F3B #3B9C2F

tetradic

#2F3B9C #9C2F72 #9C902F #2F9C59

square

#2F3B9C #9C2F72 #9C902F #2F9C59

split-complementary

#2F3B9C #9C592F #729C2F

monochromatic

#13173E #21296D #2F3B9C #4251C6 #717CD4

Accessibility & contrast

On white

9.43

#2F3B9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#2F3B9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3B9C

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3B9C	#FFFFFF	#000000	##FFFFFF
##2F3B9C	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9F

Deuteranopia (green-blind)

#00419A

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2f3b9c;
/* rgb */ color: rgb(47, 59, 156);
/* oklch */ color: oklch(40.6% 0.157 272.0);

Tailwind

colors: {
  custom: {
    50: '#7671ba',
    500: '#2f3b9c',
    950: '#000000',
  },
}

SCSS

$custom: #2f3b9c;
$custom-light: #7671ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3b9c",
  "rgb": {
    "r": 47,
    "g": 59,
    "b": 156
  },
  "hsl": {
    "h": 233.394,
    "s": 53.695,
    "l": 39.804
  },
  "oklch": {
    "l": 0.40561,
    "c": 0.15684,
    "h": 272
  },
  "luminance": 0.06133
}

Semantic roles & 50–950 ramp

primary

#2F3B9C

secondary

#BCB36B

accent

#CD4BDD

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F3B9C

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

Preview Lab → · Contrast checker → · Palette generator →