#374EA2#374EA2

#374EA2 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.3% C 0.138 H 268.8°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#374EA2
RGB	rgb(55, 78, 162)
HSL	hsl(227, 49%, 43%)
HSV	hsv(227, 66%, 64%)
CMYK	cmyk(66%, 51.9%, 0%, 36.5%)
CIE-LAB	lab(35.73, 19.35, -48.23)
CIE-LCH	lch(35.73, 51.96, 291.86°)
OKLab	oklab(45.31% -0.0029 -0.1383)
OKLCH	oklch(45.31% 0.138 268.8)
XYZ	xyz(10.8193, 8.8686, 35.3171)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EA2 #A28B37

analogous

#3783A2 #374EA2 #5637A2

triadic

#374EA2 #A2374E #4EA237

tetradic

#374EA2 #A23783 #A28B37 #37A256

square

#374EA2 #A23783 #A28B37 #37A256

split-complementary

#374EA2 #A25637 #83A237

monochromatic

#182247 #273874 #374EA2 #526BC4 #8092D4

Accessibility & contrast

On white

7.57

#374EA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#374EA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EA2

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EA2	#FFFFFF	#000000	##FFFFFF
##374EA2	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D59A5

Deuteranopia (green-blind)

#004FA0

Tritanopia (blue-blind)

#006270

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #374ea2;
/* rgb */ color: rgb(55, 78, 162);
/* oklch */ color: oklch(45.3% 0.138 268.8);

Tailwind

colors: {
  custom: {
    50: '#7a7fbe',
    500: '#374ea2',
    950: '#000000',
  },
}

SCSS

$custom: #374ea2;
$custom-light: #7a7fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#374ea2",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 162
  },
  "hsl": {
    "h": 227.103,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.45309,
    "c": 0.13837,
    "h": 268.8
  },
  "luminance": 0.0887
}

Semantic roles & 50–950 ramp

primary

#374EA2

secondary

#BDAE78

accent

#BB4FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #374EA2

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

Preview Lab → · Contrast checker → · Palette generator →