#374DA0#374DA0

#374DA0 is a dark, vivid blue. Relative luminance 0.087; OKLCH L 45.0% C 0.137 H 269.1°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#374DA0
RGB	rgb(55, 77, 160)
HSL	hsl(227, 49%, 42%)
HSV	hsv(227, 66%, 63%)
CMYK	cmyk(65.6%, 51.9%, 0%, 37.3%)
CIE-LAB	lab(35.32, 19.28, -47.69)
CIE-LCH	lch(35.32, 51.44, 292.01°)
OKLab	oklab(44.95% -0.0021 -0.1368)
OKLCH	oklch(44.95% 0.137 269.1)
XYZ	xyz(10.5724, 8.6571, 34.3647)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DA0 #A08A37

analogous

#3781A0 #374DA0 #5637A0

triadic

#374DA0 #A0374D #4DA037

tetradic

#374DA0 #A03781 #A08A37 #37A056

square

#374DA0 #A03781 #A08A37 #37A056

split-complementary

#374DA0 #A05637 #81A037

monochromatic

#182145 #273772 #374DA0 #5169C3 #7F90D3

Accessibility & contrast

On white

7.69

#374DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#374DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DA0

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DA0	#FFFFFF	#000000	##FFFFFF
##374DA0	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C58A3

Deuteranopia (green-blind)

#004F9E

Tritanopia (blue-blind)

#00606F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #374da0;
/* rgb */ color: rgb(55, 77, 160);
/* oklch */ color: oklch(45.0% 0.137 269.1);

Tailwind

colors: {
  custom: {
    50: '#797ebd',
    500: '#374da0',
    950: '#000000',
  },
}

SCSS

$custom: #374da0;
$custom-light: #797ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#374da0",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 160
  },
  "hsl": {
    "h": 227.429,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.44951,
    "c": 0.13681,
    "h": 269.1
  },
  "luminance": 0.08658
}

Semantic roles & 50–950 ramp

primary

#374DA0

secondary

#BCAE77

accent

#BC4FD8

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374DA0

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

Preview Lab → · Contrast checker → · Palette generator →