#39578B#39578B

#39578B is a mid, moderate blue. Relative luminance 0.096; OKLCH L 45.9% C 0.093 H 260.8°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#39578B
RGB	rgb(57, 87, 139)
HSL	hsl(218, 42%, 38%)
HSV	hsv(218, 59%, 55%)
CMYK	cmyk(59%, 37.4%, 0%, 45.5%)
CIE-LAB	lab(37.02, 5.55, -32.27)
CIE-LCH	lch(37.02, 32.74, 279.76°)
OKLab	oklab(45.87% -0.0148 -0.0913)
OKLCH	oklch(45.87% 0.093 260.8)
XYZ	xyz(9.7541, 9.5495, 25.7503)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39578B #8B6D39

analogous

#39808B #39578B #44398B

triadic

#39578B #8B3957 #578B39

tetradic

#39578B #8B3980 #8B6D39 #398B44

square

#39578B #8B3980 #8B6D39 #398B44

split-complementary

#39578B #8B4439 #808B39

monochromatic

#152134 #273C60 #39578B #4C72B5 #7794C7

Accessibility & contrast

On white

7.22

#39578B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#39578B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39578B

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39578B	#FFFFFF	#000000	##FFFFFF
##39578B	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415B8D

Deuteranopia (green-blind)

#37548A

Tritanopia (blue-blind)

#00636A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #39578b;
/* rgb */ color: rgb(57, 87, 139);
/* oklch */ color: oklch(45.9% 0.093 260.8);

Tailwind

colors: {
  custom: {
    50: '#7686ad',
    500: '#39578b',
    950: '#000000',
  },
}

SCSS

$custom: #39578b;
$custom-light: #7686ad;
$custom-dark: #000000;

JSON

{
  "hex": "#39578b",
  "rgb": {
    "r": 57,
    "g": 87,
    "b": 139
  },
  "hsl": {
    "h": 218.049,
    "s": 41.837,
    "l": 38.431
  },
  "oklch": {
    "l": 0.45873,
    "c": 0.09253,
    "h": 260.8
  },
  "luminance": 0.0955
}

Semantic roles & 50–950 ramp

primary

#39578B

secondary

#B0996F

accent

#A456D2

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#090B10

muted

#7B7C7F

Preview Lab

Preview with #39578B

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

Preview Lab → · Contrast checker → · Palette generator →