#37589B#37589B

#37589B is a mid, moderate blue. Relative luminance 0.102; OKLCH L 47.0% C 0.115 H 263.0°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#37589B
RGB	rgb(55, 88, 155)
HSL	hsl(220, 48%, 41%)
HSV	hsv(220, 65%, 61%)
CMYK	cmyk(64.5%, 43.2%, 0%, 39.2%)
CIE-LAB	lab(38.12, 10.22, -40.19)
CIE-LCH	lch(38.12, 41.47, 284.27°)
OKLab	oklab(46.99% -0.0142 -0.1146)
OKLCH	oklch(46.99% 0.115 263)
XYZ	xyz(10.9796, 10.1572, 32.3859)
Luminance	0.1016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37589B #9B7A37

analogous

#378A9B #37589B #48379B

triadic

#37589B #9B3758 #589B37

tetradic

#37589B #9B378A #9B7A37 #379B48

square

#37589B #9B378A #9B7A37 #379B48

split-complementary

#37589B #9B4837 #8A9B37

monochromatic

#172541 #273E6E #37589B #4F74C0 #7C98D0

Accessibility & contrast

On white

6.93

#37589B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#37589B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37589B

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37589B	#FFFFFF	#000000	##FFFFFF
##37589B	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395F9E

Deuteranopia (green-blind)

#2A559A

Tritanopia (blue-blind)

#006772

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #37589b;
/* rgb */ color: rgb(55, 88, 155);
/* oklch */ color: oklch(47.0% 0.115 263.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#37589b",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 155
  },
  "hsl": {
    "h": 220.2,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.46993,
    "c": 0.11543,
    "h": 263
  },
  "luminance": 0.10158
}

Semantic roles & 50–950 ramp

primary

#37589B

secondary

#BAA374

accent

#AB51D7

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #37589B

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

Preview Lab → · Contrast checker → · Palette generator →