#374CA4#374CA4

#374CA4 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.0% C 0.144 H 269.7°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#374CA4
RGB	rgb(55, 76, 164)
HSL	hsl(228, 50%, 43%)
HSV	hsv(228, 66%, 64%)
CMYK	cmyk(66.5%, 53.7%, 0%, 35.7%)
CIE-LAB	lab(35.32, 21.40, -50.08)
CIE-LCH	lch(35.32, 54.46, 293.13°)
OKLab	oklab(45.05% -0.0008 -0.1438)
OKLCH	oklch(45.05% 0.144 269.7)
XYZ	xyz(10.8586, 8.6604, 36.2142)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CA4 #A48F37

analogous

#3783A4 #374CA4 #5837A4

triadic

#374CA4 #A4374C #4CA437

tetradic

#374CA4 #A43783 #A48F37 #37A458

square

#374CA4 #A43783 #A48F37 #37A458

split-complementary

#374CA4 #A45837 #83A437

monochromatic

#182248 #283776 #374CA4 #5369C5 #8191D5

Accessibility & contrast

On white

7.69

#374CA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#374CA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CA4

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CA4	#FFFFFF	#000000	##FFFFFF
##374CA4	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1258A7

Deuteranopia (green-blind)

#004EA2

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #374ca4;
/* rgb */ color: rgb(55, 76, 164);
/* oklch */ color: oklch(45.0% 0.144 269.7);

Tailwind

colors: {
  custom: {
    50: '#7a7dc0',
    500: '#374ca4',
    950: '#000000',
  },
}

SCSS

$custom: #374ca4;
$custom-light: #7a7dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#374ca4",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 164
  },
  "hsl": {
    "h": 228.44,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.45045,
    "c": 0.14383,
    "h": 269.7
  },
  "luminance": 0.08661
}

Semantic roles & 50–950 ramp

primary

#374CA4

secondary

#BEB179

accent

#BF4FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374CA4

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

Preview Lab → · Contrast checker → · Palette generator →