#37538F#37538F

#37538F is a mid, moderate blue. Relative luminance 0.090; OKLCH L 45.1% C 0.104 H 263.9°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#37538F
RGB	rgb(55, 83, 143)
HSL	hsl(221, 44%, 39%)
HSV	hsv(221, 62%, 56%)
CMYK	cmyk(61.5%, 42%, 0%, 43.9%)
CIE-LAB	lab(35.95, 9.14, -36.41)
CIE-LCH	lch(35.95, 37.54, 284.09°)
OKLab	oklab(45.08% -0.0111 -0.1035)
OKLCH	oklch(45.08% 0.104 263.9)
XYZ	xyz(9.6250, 8.9811, 27.2076)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37538F #8F7337

analogous

#377F8F #37538F #47378F

triadic

#37538F #8F3753 #538F37

tetradic

#37538F #8F377F #8F7337 #378F47

square

#37538F #8F377F #8F7337 #378F47

split-complementary

#37538F #8F4737 #7F8F37

monochromatic

#152037 #263963 #37538F #4A6DB9 #7691CA

Accessibility & contrast

On white

7.51

#37538F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#37538F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37538F

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37538F	#FFFFFF	#000000	##FFFFFF
##37538F	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395991

Deuteranopia (green-blind)

#2D518E

Tritanopia (blue-blind)

#00606A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #37538f;
/* rgb */ color: rgb(55, 83, 143);
/* oklch */ color: oklch(45.1% 0.104 263.9);

Tailwind

colors: {
  custom: {
    50: '#7683b0',
    500: '#37538f',
    950: '#000000',
  },
}

SCSS

$custom: #37538f;
$custom-light: #7683b0;
$custom-dark: #000000;

JSON

{
  "hex": "#37538f",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 143
  },
  "hsl": {
    "h": 220.909,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.45085,
    "c": 0.10414,
    "h": 263.9
  },
  "luminance": 0.08982
}

Semantic roles & 50–950 ramp

primary

#37538F

secondary

#B39D6F

accent

#AB54D4

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #37538F

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

Preview Lab → · Contrast checker → · Palette generator →