#37487B#37487B

#37487B is a dark, moderate blue. Relative luminance 0.069; OKLCH L 41.3% C 0.088 H 268.5°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#37487B
RGB	rgb(55, 72, 123)
HSL	hsl(225, 38%, 35%)
HSV	hsv(225, 55%, 48%)
CMYK	cmyk(55.3%, 41.5%, 0%, 51.8%)
CIE-LAB	lab(31.52, 9.30, -31.12)
CIE-LCH	lch(31.52, 32.48, 286.63°)
OKLab	oklab(41.3% -0.0024 -0.0882)
OKLCH	oklch(41.3% 0.088 268.5)
XYZ	xyz(7.4669, 6.8765, 19.6689)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37487B #7B6A37

analogous

#376A7B #37487B #48377B

triadic

#37487B #7B3748 #487B37

tetradic

#37487B #7B376A #7B6A37 #377B48

square

#37487B #7B376A #7B6A37 #377B48

split-complementary

#37487B #7B4837 #6A7B37

monochromatic

#111626 #242F51 #37487B #4A61A5 #6E82BE

Accessibility & contrast

On white

8.84

#37487B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#37487B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37487B

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37487B	#FFFFFF	#000000	##FFFFFF
##37487B	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334D7D

Deuteranopia (green-blind)

#2B477A

Tritanopia (blue-blind)

#15535B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #37487b;
/* rgb */ color: rgb(55, 72, 123);
/* oklch */ color: oklch(41.3% 0.088 268.5);

Tailwind

colors: {
  custom: {
    50: '#737aa1',
    500: '#37487b',
    950: '#000000',
  },
}

SCSS

$custom: #37487b;
$custom-light: #737aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#37487b",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 123
  },
  "hsl": {
    "h": 225,
    "s": 38.202,
    "l": 34.902
  },
  "oklch": {
    "l": 0.41296,
    "c": 0.08821,
    "h": 268.5
  },
  "luminance": 0.06877
}

Semantic roles & 50–950 ramp

primary

#37487B

secondary

#A79767

accent

#B15ACE

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#08090F

muted

#7B7B7E

Preview Lab

Preview with #37487B

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

Preview Lab → · Contrast checker → · Palette generator →