#2F439B#2F439B

#2F439B is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.0% C 0.145 H 269.5°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#2F439B
RGB	rgb(47, 67, 155)
HSL	hsl(229, 53%, 40%)
HSV	hsv(229, 70%, 61%)
CMYK	cmyk(69.7%, 56.8%, 0%, 39.2%)
CIE-LAB	lab(31.77, 22.78, -50.43)
CIE-LCH	lch(31.77, 55.34, 294.30°)
OKLab	oklab(42.05% -0.0013 -0.1452)
OKLCH	oklch(42.05% 0.145 269.5)
XYZ	xyz(9.0938, 6.9843, 31.8729)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F439B #9B872F

analogous

#2F799B #2F439B #512F9B

triadic

#2F439B #9B2F43 #439B2F

tetradic

#2F439B #9B2F79 #9B872F #2F9B51

square

#2F439B #9B2F79 #9B872F #2F9B51

split-complementary

#2F439B #9B512F #799B2F

monochromatic

#131A3D #212F6C #2F439B #425AC6 #7183D4

Accessibility & contrast

On white

8.76

#2F439B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2F439B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F439B

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F439B	#FFFFFF	#000000	##FFFFFF
##2F439B	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509E

Deuteranopia (green-blind)

#004699

Tritanopia (blue-blind)

#005868

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f439b;
/* rgb */ color: rgb(47, 67, 155);
/* oklch */ color: oklch(42.0% 0.145 269.5);

Tailwind

colors: {
  custom: {
    50: '#7576b9',
    500: '#2f439b',
    950: '#000000',
  },
}

SCSS

$custom: #2f439b;
$custom-light: #7576b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f439b",
  "rgb": {
    "r": 47,
    "g": 67,
    "b": 155
  },
  "hsl": {
    "h": 228.889,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.42046,
    "c": 0.14518,
    "h": 269.5
  },
  "luminance": 0.06985
}

Semantic roles & 50–950 ramp

primary

#2F439B

secondary

#BBAC6A

accent

#C24BDD

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2F439B

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

Preview Lab → · Contrast checker → · Palette generator →