#37517E#37517E

#37517E is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.6% C 0.081 H 260.8°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#37517E
RGB	rgb(55, 81, 126)
HSL	hsl(218, 39%, 35%)
HSV	hsv(218, 56%, 49%)
CMYK	cmyk(56.3%, 35.7%, 0%, 50.6%)
CIE-LAB	lab(34.40, 4.42, -28.44)
CIE-LCH	lch(34.40, 28.78, 278.84°)
OKLab	oklab(43.58% -0.0129 -0.0803)
OKLCH	oklch(43.58% 0.081 260.8)
XYZ	xyz(8.2826, 8.2028, 20.8815)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37517E #7E6437

analogous

#37747E #37517E #40377E

triadic

#37517E #7E3751 #517E37

tetradic

#37517E #7E3774 #7E6437 #377E40

square

#37517E #7E3774 #7E6437 #377E40

split-complementary

#37517E #7E4037 #747E37

monochromatic

#121A29 #243653 #37517E #4A6CA9 #6F8DC0

Accessibility & contrast

On white

7.95

#37517E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#37517E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37517E

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37517E	#FFFFFF	#000000	##FFFFFF
##37517E	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5580

Deuteranopia (green-blind)

#364E7D

Tritanopia (blue-blind)

#0E5B61

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #37517e;
/* rgb */ color: rgb(55, 81, 126);
/* oklch */ color: oklch(43.6% 0.081 260.8);

Tailwind

colors: {
  custom: {
    50: '#7381a3',
    500: '#37517e',
    950: '#000000',
  },
}

SCSS

$custom: #37517e;
$custom-light: #7381a3;
$custom-dark: #000000;

JSON

{
  "hex": "#37517e",
  "rgb": {
    "r": 55,
    "g": 81,
    "b": 126
  },
  "hsl": {
    "h": 218.028,
    "s": 39.227,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43578,
    "c": 0.0813,
    "h": 260.8
  },
  "luminance": 0.08203
}

Semantic roles & 50–950 ramp

primary

#37517E

secondary

#A99168

accent

#A459CF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A0F

muted

#7B7C7F

Preview Lab

Preview with #37517E

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

Preview Lab → · Contrast checker → · Palette generator →