#374FB7#374FB7

#374FB7 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.1% C 0.167 H 269.2°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#374FB7
RGB	rgb(55, 79, 183)
HSL	hsl(229, 54%, 47%)
HSV	hsv(229, 70%, 72%)
CMYK	cmyk(69.9%, 56.8%, 0%, 28.2%)
CIE-LAB	lab(37.52, 26.37, -57.80)
CIE-LCH	lch(37.52, 63.53, 294.52°)
OKLab	oklab(47.14% -0.0024 -0.1665)
OKLCH	oklch(47.14% 0.167 269.2)
XYZ	xyz(12.9158, 9.8218, 46.0057)
Luminance	0.0982 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FB7 #B79F37

analogous

#378FB7 #374FB7 #5F37B7

triadic

#374FB7 #B7374F #4FB737

tetradic

#374FB7 #B7378F #B79F37 #37B75F

square

#374FB7 #B7378F #B79F37 #37B75F

split-complementary

#374FB7 #B75F37 #8FB737

monochromatic

#1B2659 #293B88 #374FB7 #5D72CE #8C9BDC

Accessibility & contrast

On white

7.08

#374FB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#374FB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374FB7

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FB7	#FFFFFF	#000000	##FFFFFF
##374FB7	1.00	7.08	2.96	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBB

Deuteranopia (green-blind)

#0053B5

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #374fb7;
/* rgb */ color: rgb(55, 79, 183);
/* oklch */ color: oklch(47.1% 0.167 269.2);

Tailwind

colors: {
  custom: {
    50: '#7e80cd',
    500: '#374fb7',
    950: '#000000',
  },
}

SCSS

$custom: #374fb7;
$custom-light: #7e80cd;
$custom-dark: #000000;

JSON

{
  "hex": "#374fb7",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 183
  },
  "hsl": {
    "h": 228.75,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.4714,
    "c": 0.16651,
    "h": 269.2
  },
  "luminance": 0.09823
}

Semantic roles & 50–950 ramp

primary

#374FB7

secondary

#C7BA83

accent

#C24BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #374FB7

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

Preview Lab → · Contrast checker → · Palette generator →