#37445F#37445F

#37445F is a dark, muted blue. Relative luminance 0.058; OKLCH L 38.7% C 0.049 H 264.4°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#37445F
RGB	rgb(55, 68, 95)
HSL	hsl(221, 27%, 29%)
HSV	hsv(221, 42%, 37%)
CMYK	cmyk(42.1%, 28.4%, 0%, 62.7%)
CIE-LAB	lab(28.83, 2.56, -17.62)
CIE-LCH	lch(28.83, 17.81, 278.27°)
OKLab	oklab(38.73% -0.0048 -0.049)
OKLCH	oklch(38.73% 0.049 264.4)
XYZ	xyz(5.7076, 5.7724, 11.6377)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37445F #5F5237

analogous

#37585F #37445F #3E375F

triadic

#37445F #5F3744 #445F37

tetradic

#37445F #5F3758 #5F5237 #375F3E

square

#37445F #5F3758 #5F5237 #375F3E

split-complementary

#37445F #5F3E37 #585F37

monochromatic

#0B0E13 #212838 #37445F #4D6086 #697DA8

Accessibility & contrast

On white

9.75

#37445F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#37445F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37445F

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37445F	#FFFFFF	#000000	##FFFFFF
##37445F	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4660

Deuteranopia (green-blind)

#37425E

Tritanopia (blue-blind)

#2A4A4D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #37445f;
/* rgb */ color: rgb(55, 68, 95);
/* oklch */ color: oklch(38.7% 0.049 264.4);

Tailwind

colors: {
  custom: {
    50: '#6f778c',
    500: '#37445f',
    950: '#000000',
  },
}

SCSS

$custom: #37445f;
$custom-light: #6f778c;
$custom-dark: #000000;

JSON

{
  "hex": "#37445f",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 95
  },
  "hsl": {
    "h": 220.5,
    "s": 26.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.38727,
    "c": 0.04928,
    "h": 264.4
  },
  "luminance": 0.05773
}

Semantic roles & 50–950 ramp

primary

#37445F

secondary

#8F8162

accent

#A465C3

background

#F6F7F8

surface

#ECEDF0

border

#C7C8CB

text

#07080C

muted

#7A7B7D

Preview Lab

Preview with #37445F

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

Preview Lab → · Contrast checker → · Palette generator →