#374FBF#374FBF

#374FBF is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.8% C 0.177 H 269.3°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#374FBF
RGB	rgb(55, 79, 191)
HSL	hsl(229, 55%, 48%)
HSV	hsv(229, 71%, 75%)
CMYK	cmyk(71.2%, 58.6%, 0%, 25.1%)
CIE-LAB	lab(38.14, 29.27, -61.49)
CIE-LCH	lch(38.14, 68.10, 295.46°)
OKLab	oklab(47.79% -0.0022 -0.1773)
OKLCH	oklch(47.79% 0.177 269.3)
XYZ	xyz(13.7723, 10.1644, 50.5162)
Luminance	0.1017 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FBF #BFA737

analogous

#3793BF #374FBF #6337BF

triadic

#374FBF #BF374F #4FBF37

tetradic

#374FBF #BF3793 #BFA737 #37BF63

square

#374FBF #BF3793 #BFA737 #37BF63

split-complementary

#374FBF #BF6337 #93BF37

monochromatic

#1C2860 #293B8F #374FBF #6275D2 #919FDF

Accessibility & contrast

On white

6.92

#374FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#374FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #374FBF

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FBF	#FFFFFF	#000000	##FFFFFF
##374FBF	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C3

Deuteranopia (green-blind)

#0054BD

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #374fbf;
/* rgb */ color: rgb(55, 79, 191);
/* oklch */ color: oklch(47.8% 0.177 269.3);

Tailwind

colors: {
  custom: {
    50: '#8080d3',
    500: '#374fbf',
    950: '#000000',
  },
}

SCSS

$custom: #374fbf;
$custom-light: #8080d3;
$custom-dark: #000000;

JSON

{
  "hex": "#374fbf",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 191
  },
  "hsl": {
    "h": 229.412,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.47792,
    "c": 0.17735,
    "h": 269.3
  },
  "luminance": 0.10166
}

Semantic roles & 50–950 ramp

primary

#374FBF

secondary

#CABE88

accent

#C449DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #374FBF

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

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