#374DB0#374DB0

#374DB0 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.2% C 0.159 H 269.6°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#374DB0
RGB	rgb(55, 77, 176)
HSL	hsl(229, 52%, 45%)
HSV	hsv(229, 69%, 69%)
CMYK	cmyk(68.8%, 56.2%, 0%, 31%)
CIE-LAB	lab(36.47, 25.12, -55.38)
CIE-LCH	lch(36.47, 60.81, 294.40°)
OKLab	oklab(46.18% -0.001 -0.1594)
OKLCH	oklch(46.18% 0.159 269.6)
XYZ	xyz(12.0632, 9.2534, 42.2162)
Luminance	0.0925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DB0 #B09A37

analogous

#3789B0 #374DB0 #5D37B0

triadic

#374DB0 #B0374D #4DB037

tetradic

#374DB0 #B03789 #B09A37 #37B05D

square

#374DB0 #B03789 #B09A37 #37B05D

split-complementary

#374DB0 #B05D37 #89B037

monochromatic

#1A2453 #283981 #374DB0 #596ECB #8897DA

Accessibility & contrast

On white

7.37

#374DB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#374DB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DB0

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DB0	#FFFFFF	#000000	##FFFFFF
##374DB0	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB3

Deuteranopia (green-blind)

#0050AE

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #374db0;
/* rgb */ color: rgb(55, 77, 176);
/* oklch */ color: oklch(46.2% 0.159 269.6);

Tailwind

colors: {
  custom: {
    50: '#7d7ec8',
    500: '#374db0',
    950: '#000000',
  },
}

SCSS

$custom: #374db0;
$custom-light: #7d7ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#374db0",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 176
  },
  "hsl": {
    "h": 229.091,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46185,
    "c": 0.15939,
    "h": 269.6
  },
  "luminance": 0.09255
}

Semantic roles & 50–950 ramp

primary

#374DB0

secondary

#C4B77F

accent

#C24CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374DB0

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

Preview Lab → · Contrast checker → · Palette generator →