#2F409B#2F409B

#2F409B is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.4% C 0.149 H 270.5°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#2F409B
RGB	rgb(47, 64, 155)
HSL	hsl(231, 53%, 40%)
HSV	hsv(231, 70%, 61%)
CMYK	cmyk(69.7%, 58.7%, 0%, 39.2%)
CIE-LAB	lab(30.97, 24.78, -51.74)
CIE-LCH	lch(30.97, 57.37, 295.59°)
OKLab	oklab(41.44% 0.0013 -0.149)
OKLCH	oklch(41.44% 0.149 270.5)
XYZ	xyz(8.9201, 6.6368, 31.8149)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F409B #9B8A2F

analogous

#2F769B #2F409B #542F9B

triadic

#2F409B #9B2F40 #409B2F

tetradic

#2F409B #9B2F76 #9B8A2F #2F9B54

square

#2F409B #9B2F76 #9B8A2F #2F9B54

split-complementary

#2F409B #9B542F #769B2F

monochromatic

#13193D #212D6C #2F409B #4256C6 #7180D4

Accessibility & contrast

On white

9.02

#2F409B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2F409B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F409B

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F409B	#FFFFFF	#000000	##FFFFFF
##2F409B	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9E

Deuteranopia (green-blind)

#004499

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2f409b;
/* rgb */ color: rgb(47, 64, 155);
/* oklch */ color: oklch(41.4% 0.149 270.5);

Tailwind

colors: {
  custom: {
    50: '#7674b9',
    500: '#2f409b',
    950: '#000000',
  },
}

SCSS

$custom: #2f409b;
$custom-light: #7674b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f409b",
  "rgb": {
    "r": 47,
    "g": 64,
    "b": 155
  },
  "hsl": {
    "h": 230.556,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.41443,
    "c": 0.14906,
    "h": 270.5
  },
  "luminance": 0.06638
}

Semantic roles & 50–950 ramp

primary

#2F409B

secondary

#BBAF6A

accent

#C64BDD

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #2F409B

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

Preview Lab → · Contrast checker → · Palette generator →