#2F509B#2F509B

#2F509B is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.8% C 0.128 H 264.1°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#2F509B
RGB	rgb(47, 80, 155)
HSL	hsl(222, 53%, 40%)
HSV	hsv(222, 70%, 61%)
CMYK	cmyk(69.7%, 48.4%, 0%, 39.2%)
CIE-LAB	lab(35.41, 14.08, -44.55)
CIE-LCH	lch(35.41, 46.72, 287.54°)
OKLab	oklab(44.81% -0.0133 -0.1277)
OKLCH	oklch(44.81% 0.128 264.1)
XYZ	xyz(9.9553, 8.7072, 32.1600)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F509B #9B7A2F

analogous

#2F869B #2F509B #442F9B

triadic

#2F509B #9B2F50 #509B2F

tetradic

#2F509B #9B2F86 #9B7A2F #2F9B44

square

#2F509B #9B2F86 #9B7A2F #2F9B44

split-complementary

#2F509B #9B442F #869B2F

monochromatic

#13203D #21386C #2F509B #426AC6 #718FD4

Accessibility & contrast

On white

7.66

#2F509B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#2F509B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F509B

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F509B	#FFFFFF	#000000	##FFFFFF
##2F509B	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28599E

Deuteranopia (green-blind)

#0F4F99

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #2f509b;
/* rgb */ color: rgb(47, 80, 155);
/* oklch */ color: oklch(44.8% 0.128 264.1);

Tailwind

colors: {
  custom: {
    50: '#7580b9',
    500: '#2f509b',
    950: '#000000',
  },
}

SCSS

$custom: #2f509b;
$custom-light: #7580b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f509b",
  "rgb": {
    "r": 47,
    "g": 80,
    "b": 155
  },
  "hsl": {
    "h": 221.667,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.44807,
    "c": 0.12834,
    "h": 264.1
  },
  "luminance": 0.08708
}

Semantic roles & 50–950 ramp

primary

#2F509B

secondary

#BBA36A

accent

#B04BDD

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #2F509B

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

Preview Lab → · Contrast checker → · Palette generator →