#374FDF#374FDF

#374FDF is a mid, highly saturated blue. Relative luminance 0.117; OKLCH L 50.6% C 0.219 H 269.3°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#374FDF
RGB	rgb(55, 79, 223)
HSL	hsl(231, 72%, 55%)
HSV	hsv(231, 75%, 87%)
CMYK	cmyk(75.3%, 64.6%, 0%, 12.5%)
CIE-LAB	lab(40.78, 40.70, -75.63)
CIE-LCH	lch(40.78, 85.89, 298.28°)
OKLab	oklab(50.57% -0.0029 -0.2188)
OKLCH	oklch(50.57% 0.219 269.3)
XYZ	xyz(17.6862, 11.7300, 71.1297)
Luminance	0.1173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FDF #DFC737

analogous

#37A3DF #374FDF #7337DF

triadic

#374FDF #DF374F #4FDF37

tetradic

#374FDF #DF37A3 #DFC737 #37DF73

square

#374FDF #DF37A3 #DFC737 #37DF73

split-complementary

#374FDF #DF7337 #A3DF37

monochromatic

#152686 #1E34BB #374FDF #6C7DE7 #A1ACF0

Accessibility & contrast

On white

6.28

#374FDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#374FDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #374FDF

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FDF	#FFFFFF	#000000	##FFFFFF
##374FDF	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068E4

Deuteranopia (green-blind)

#0058DC

Tritanopia (blue-blind)

#007590

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #374fdf;
/* rgb */ color: rgb(55, 79, 223);
/* oklch */ color: oklch(50.6% 0.219 269.3);

Tailwind

colors: {
  custom: {
    50: '#8780ea',
    500: '#374fdf',
    950: '#000000',
  },
}

SCSS

$custom: #374fdf;
$custom-light: #8780ea;
$custom-dark: #000000;

JSON

{
  "hex": "#374fdf",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 223
  },
  "hsl": {
    "h": 231.429,
    "s": 72.414,
    "l": 54.51
  },
  "oklch": {
    "l": 0.50568,
    "c": 0.21883,
    "h": 269.3
  },
  "luminance": 0.11732
}

Semantic roles & 50–950 ramp

primary

#374FDF

secondary

#DCD295

accent

#D539EF

background

#F9F7FE

surface

#F1EEFD

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #374FDF

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

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