#374DA4#374DA4

#374DA4 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.3% C 0.143 H 269.3°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#374DA4
RGB	rgb(55, 77, 164)
HSL	hsl(228, 50%, 43%)
HSV	hsv(228, 66%, 64%)
CMYK	cmyk(66.5%, 53%, 0%, 35.7%)
CIE-LAB	lab(35.59, 20.74, -49.64)
CIE-LCH	lch(35.59, 53.80, 292.67°)
OKLab	oklab(45.25% -0.0018 -0.1425)
OKLCH	oklch(45.25% 0.143 269.3)
XYZ	xyz(10.9280, 8.7993, 36.2373)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DA4 #A48E37

analogous

#3783A4 #374DA4 #5737A4

triadic

#374DA4 #A4374D #4DA437

tetradic

#374DA4 #A43783 #A48E37 #37A457

square

#374DA4 #A43783 #A48E37 #37A457

split-complementary

#374DA4 #A45737 #83A437

monochromatic

#182248 #283776 #374DA4 #536AC5 #8192D5

Accessibility & contrast

On white

7.61

#374DA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#374DA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DA4

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DA4	#FFFFFF	#000000	##FFFFFF
##374DA4	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1659A7

Deuteranopia (green-blind)

#004FA2

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #374da4;
/* rgb */ color: rgb(55, 77, 164);
/* oklch */ color: oklch(45.3% 0.143 269.3);

Tailwind

colors: {
  custom: {
    50: '#7a7ec0',
    500: '#374da4',
    950: '#000000',
  },
}

SCSS

$custom: #374da4;
$custom-light: #7a7ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#374da4",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 164
  },
  "hsl": {
    "h": 227.89,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.45251,
    "c": 0.14253,
    "h": 269.3
  },
  "luminance": 0.088
}

Semantic roles & 50–950 ramp

primary

#374DA4

secondary

#BEB079

accent

#BD4FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374DA4

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

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