#33579B#33579B

#33579B is a mid, moderate blue. Relative luminance 0.099; OKLCH L 46.6% C 0.118 H 261.9°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#33579B
RGB	rgb(51, 87, 155)
HSL	hsl(219, 50%, 40%)
HSV	hsv(219, 67%, 61%)
CMYK	cmyk(67.1%, 43.9%, 0%, 39.2%)
CIE-LAB	lab(37.64, 10.14, -40.98)
CIE-LCH	lch(37.64, 42.21, 283.90°)
OKLab	oklab(46.57% -0.0167 -0.117)
OKLCH	oklch(46.57% 0.118 261.9)
XYZ	xyz(10.6877, 9.8857, 32.3489)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33579B #9B7733

analogous

#338B9B #33579B #43339B

triadic

#33579B #9B3357 #579B33

tetradic

#33579B #9B338B #9B7733 #339B43

square

#33579B #9B338B #9B7733 #339B43

split-complementary

#33579B #9B4333 #8B9B33

monochromatic

#15233F #243D6D #33579B #4873C3 #7696D2

Accessibility & contrast

On white

7.05

#33579B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#33579B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33579B

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33579B	#FFFFFF	#000000	##FFFFFF
##33579B	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375E9E

Deuteranopia (green-blind)

#26549A

Tritanopia (blue-blind)

#006771

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #33579b;
/* rgb */ color: rgb(51, 87, 155);
/* oklch */ color: oklch(46.6% 0.118 261.9);

Tailwind

colors: {
  custom: {
    50: '#7685b9',
    500: '#33579b',
    950: '#000000',
  },
}

SCSS

$custom: #33579b;
$custom-light: #7685b9;
$custom-dark: #000000;

JSON

{
  "hex": "#33579b",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 155
  },
  "hsl": {
    "h": 219.231,
    "s": 50.485,
    "l": 40.392
  },
  "oklch": {
    "l": 0.46565,
    "c": 0.11816,
    "h": 261.9
  },
  "luminance": 0.09887
}

Semantic roles & 50–950 ramp

primary

#33579B

secondary

#BAA06F

accent

#A94EDA

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #33579B

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

Preview Lab → · Contrast checker → · Palette generator →