#43579B#43579B

#43579B is a mid, moderate blue. Relative luminance 0.104; OKLCH L 47.5% C 0.112 H 269.4°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#43579B
RGB	rgb(67, 87, 155)
HSL	hsl(226, 40%, 44%)
HSV	hsv(226, 57%, 61%)
CMYK	cmyk(56.8%, 43.9%, 0%, 39.2%)
CIE-LAB	lab(38.51, 13.33, -39.54)
CIE-LCH	lch(38.51, 41.72, 288.64°)
OKLab	oklab(47.47% -0.0011 -0.1124)
OKLCH	oklch(47.47% 0.112 269.4)
XYZ	xyz(11.6374, 10.3754, 32.3934)
Luminance	0.1038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#43579B #9B8743

analogous

#43839B #43579B #5B439B

triadic

#43579B #9B4357 #579B43

tetradic

#43579B #9B4383 #9B8743 #439B5B

square

#43579B #9B4383 #9B8743 #439B5B

split-complementary

#43579B #9B5B43 #839B43

monochromatic

#1E2746 #313F70 #43579B #6175BB #8B9ACD

Accessibility & contrast

On white

6.83

#43579B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#43579B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #43579B

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##43579B	#FFFFFF	#000000	##FFFFFF
##43579B	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A5F9E

Deuteranopia (green-blind)

#2F579A

Tritanopia (blue-blind)

#0E6671

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #43579b;
/* rgb */ color: rgb(67, 87, 155);
/* oklch */ color: oklch(47.5% 0.112 269.4);

Tailwind

colors: {
  custom: {
    50: '#7e86b9',
    500: '#43579b',
    950: '#000000',
  },
}

SCSS

$custom: #43579b;
$custom-light: #7e86b9;
$custom-dark: #000000;

JSON

{
  "hex": "#43579b",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 155
  },
  "hsl": {
    "h": 226.364,
    "s": 39.64,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47469,
    "c": 0.11243,
    "h": 269.4
  },
  "luminance": 0.10376
}

Semantic roles & 50–950 ramp

primary

#43579B

secondary

#B8AC82

accent

#B458D0

background

#F8F8FB

surface

#EFEFF6

border

#CACAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #43579B

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

Preview Lab → · Contrast checker → · Palette generator →