#37589C#37589C

#37589C is a mid, moderate blue. Relative luminance 0.102; OKLCH L 47.1% C 0.117 H 263.1°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#37589C
RGB	rgb(55, 88, 156)
HSL	hsl(220, 48%, 41%)
HSV	hsv(220, 65%, 61%)
CMYK	cmyk(64.7%, 43.6%, 0%, 38.8%)
CIE-LAB	lab(38.18, 10.59, -40.69)
CIE-LCH	lch(38.18, 42.05, 284.58°)
OKLab	oklab(47.06% -0.014 -0.116)
OKLCH	oklch(47.06% 0.117 263.1)
XYZ	xyz(11.0639, 10.1910, 32.8300)
Luminance	0.1019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37589C #9C7B37

analogous

#378B9C #37589C #49379C

triadic

#37589C #9C3758 #589C37

tetradic

#37589C #9C378B #9C7B37 #379C49

square

#37589C #9C378B #9C7B37 #379C49

split-complementary

#37589C #9C4937 #8B9C37

monochromatic

#172542 #273E6F #37589C #4F74C1 #7C98D1

Accessibility & contrast

On white

6.91

#37589C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#37589C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37589C

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37589C	#FFFFFF	#000000	##FFFFFF
##37589C	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395F9F

Deuteranopia (green-blind)

#29569B

Tritanopia (blue-blind)

#006772

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #37589c;
/* rgb */ color: rgb(55, 88, 156);
/* oklch */ color: oklch(47.1% 0.117 263.1);

Tailwind

colors: {
  custom: {
    50: '#7886b9',
    500: '#37589c',
    950: '#000000',
  },
}

SCSS

$custom: #37589c;
$custom-light: #7886b9;
$custom-dark: #000000;

JSON

{
  "hex": "#37589c",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 156
  },
  "hsl": {
    "h": 220.396,
    "s": 47.867,
    "l": 41.373
  },
  "oklch": {
    "l": 0.47059,
    "c": 0.11688,
    "h": 263.1
  },
  "luminance": 0.10192
}

Semantic roles & 50–950 ramp

primary

#37589C

secondary

#BAA375

accent

#AB50D7

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #37589C

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

Preview Lab → · Contrast checker → · Palette generator →