#374E9A#374E9A

#374E9A is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.7% C 0.127 H 268.3°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#374E9A
RGB	rgb(55, 78, 154)
HSL	hsl(226, 47%, 41%)
HSV	hsv(226, 64%, 60%)
CMYK	cmyk(64.3%, 49.4%, 0%, 39.6%)
CIE-LAB	lab(35.19, 16.42, -44.28)
CIE-LCH	lch(35.19, 47.23, 290.35°)
OKLab	oklab(44.73% -0.0038 -0.1267)
OKLCH	oklch(44.73% 0.127 268.3)
XYZ	xyz(10.1307, 8.5932, 31.6904)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374E9A #9A8337

analogous

#377F9A #374E9A #52379A

triadic

#374E9A #9A374E #4E9A37

tetradic

#374E9A #9A377F #9A8337 #379A52

square

#374E9A #9A377F #9A8337 #379A52

split-complementary

#374E9A #9A5237 #7F9A37

monochromatic

#172040 #27376D #374E9A #4E69C0 #7B8FD0

Accessibility & contrast

On white

7.72

#374E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#374E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374E9A

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374E9A	#FFFFFF	#000000	##FFFFFF
##374E9A	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26579D

Deuteranopia (green-blind)

#124F98

Tritanopia (blue-blind)

#005F6C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #374e9a;
/* rgb */ color: rgb(55, 78, 154);
/* oklch */ color: oklch(44.7% 0.127 268.3);

Tailwind

colors: {
  custom: {
    50: '#787fb8',
    500: '#374e9a',
    950: '#000000',
  },
}

SCSS

$custom: #374e9a;
$custom-light: #787fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#374e9a",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 154
  },
  "hsl": {
    "h": 226.061,
    "s": 47.368,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44725,
    "c": 0.1268,
    "h": 268.3
  },
  "luminance": 0.08594
}

Semantic roles & 50–950 ramp

primary

#374E9A

secondary

#B9A974

accent

#B851D7

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #374E9A

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

Preview Lab → · Contrast checker → · Palette generator →