#374DBB#374DBB

#374DBB is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.1% C 0.174 H 269.8°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#374DBB
RGB	rgb(55, 77, 187)
HSL	hsl(230, 55%, 47%)
HSV	hsv(230, 71%, 73%)
CMYK	cmyk(70.6%, 58.8%, 0%, 26.7%)
CIE-LAB	lab(37.31, 29.12, -60.49)
CIE-LCH	lch(37.31, 67.14, 295.70°)
OKLab	oklab(47.08% -0.0007 -0.1744)
OKLCH	oklch(47.08% 0.174 269.8)
XYZ	xyz(13.1960, 9.7065, 48.1822)
Luminance	0.0971 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DBB #BBA537

analogous

#378FBB #374DBB #6337BB

triadic

#374DBB #BB374D #4DBB37

tetradic

#374DBB #BB378F #BBA537 #37BB63

square

#374DBB #BB378F #BBA537 #37BB63

split-complementary

#374DBB #BB6337 #8FBB37

monochromatic

#1B265C #293A8C #374DBB #5F72D0 #8E9CDE

Accessibility & contrast

On white

7.14

#374DBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#374DBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DBB

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DBB	#FFFFFF	#000000	##FFFFFF
##374DBB	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBF

Deuteranopia (green-blind)

#0052B9

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #374dbb;
/* rgb */ color: rgb(55, 77, 187);
/* oklch */ color: oklch(47.1% 0.174 269.8);

Tailwind

colors: {
  custom: {
    50: '#7f7ed0',
    500: '#374dbb',
    950: '#000000',
  },
}

SCSS

$custom: #374dbb;
$custom-light: #7f7ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#374dbb",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 187
  },
  "hsl": {
    "h": 230,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47079,
    "c": 0.17443,
    "h": 269.8
  },
  "luminance": 0.09708
}

Semantic roles & 50–950 ramp

primary

#374DBB

secondary

#C9BD85

accent

#C54ADE

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #374DBB

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

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