#373B4E#373B4E

#373B4E is a dark, muted blue. Relative luminance 0.045; OKLCH L 35.7% C 0.033 H 275.3°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#373B4E
RGB	rgb(55, 59, 78)
HSL	hsl(230, 17%, 26%)
HSV	hsv(230, 29%, 31%)
CMYK	cmyk(29.5%, 24.4%, 0%, 69.4%)
CIE-LAB	lab(25.23, 3.36, -12.10)
CIE-LCH	lch(25.23, 12.56, 285.51°)
OKLab	oklab(35.66% 0.0031 -0.0333)
OKLCH	oklch(35.66% 0.033 275.3)
XYZ	xyz(4.5143, 4.4901, 7.8351)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373B4E #4E4A37

analogous

#37464E #373B4E #3E374E

triadic

#373B4E #4E373B #3B4E37

tetradic

#373B4E #4E3746 #4E4A37 #374E3E

square

#373B4E #4E3746 #4E4A37 #374E3E

split-complementary

#373B4E #4E3E37 #464E37

monochromatic

#0D0E12 #1E202A #373B4E #505672 #6A7196

Accessibility & contrast

On white

11.06

#373B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#373B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373B4E

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373B4E	#FFFFFF	#000000	##FFFFFF
##373B4E	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363D4F

Deuteranopia (green-blind)

#343B4E

Tritanopia (blue-blind)

#313F41

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #373b4e;
/* rgb */ color: rgb(55, 59, 78);
/* oklch */ color: oklch(35.7% 0.033 275.3);

Tailwind

colors: {
  custom: {
    50: '#6e707f',
    500: '#373b4e',
    950: '#000000',
  },
}

SCSS

$custom: #373b4e;
$custom-light: #6e707f;
$custom-dark: #000000;

JSON

{
  "hex": "#373b4e",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 78
  },
  "hsl": {
    "h": 229.565,
    "s": 17.293,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35663,
    "c": 0.03343,
    "h": 275.3
  },
  "luminance": 0.0449
}

Semantic roles & 50–950 ramp

primary

#373B4E

secondary

#7E7963

accent

#AD6EBA

background

#F6F6F7

surface

#ECECEE

border

#C7C7C9

text

#07070A

muted

#7A7A7C

Preview Lab

Preview with #373B4E

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

Preview Lab → · Contrast checker → · Palette generator →