#374BA0#374BA0

#374BA0 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.5% C 0.139 H 269.9°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#374BA0
RGB	rgb(55, 75, 160)
HSL	hsl(229, 49%, 42%)
HSV	hsv(229, 66%, 63%)
CMYK	cmyk(65.6%, 53.1%, 0%, 37.3%)
CIE-LAB	lab(34.77, 20.60, -48.58)
CIE-LCH	lch(34.77, 52.77, 292.98°)
OKLab	oklab(44.54% -0.0002 -0.1394)
OKLCH	oklch(44.54% 0.139 269.9)
XYZ	xyz(10.4346, 8.3815, 34.3188)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BA0 #A08C37

analogous

#3780A0 #374BA0 #5737A0

triadic

#374BA0 #A0374B #4BA037

tetradic

#374BA0 #A03780 #A08C37 #37A057

square

#374BA0 #A03780 #A08C37 #37A057

split-complementary

#374BA0 #A05737 #80A037

monochromatic

#182045 #273672 #374BA0 #5167C3 #7F8FD3

Accessibility & contrast

On white

7.85

#374BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#374BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BA0

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374BA0	#FFFFFF	#000000	##FFFFFF
##374BA0	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1657A3

Deuteranopia (green-blind)

#004D9E

Tritanopia (blue-blind)

#005F6E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #374ba0;
/* rgb */ color: rgb(55, 75, 160);
/* oklch */ color: oklch(44.5% 0.139 269.9);

Tailwind

colors: {
  custom: {
    50: '#797cbd',
    500: '#374ba0',
    950: '#000000',
  },
}

SCSS

$custom: #374ba0;
$custom-light: #797cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#374ba0",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 160
  },
  "hsl": {
    "h": 228.571,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.44535,
    "c": 0.13943,
    "h": 269.9
  },
  "luminance": 0.08382
}

Semantic roles & 50–950 ramp

primary

#374BA0

secondary

#BCAF77

accent

#BE4FD8

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374BA0

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

Preview Lab → · Contrast checker → · Palette generator →