#374CA0#374CA0

#374CA0 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.7% C 0.138 H 269.5°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#374CA0
RGB	rgb(55, 76, 160)
HSL	hsl(228, 49%, 42%)
HSV	hsv(228, 66%, 63%)
CMYK	cmyk(65.6%, 52.5%, 0%, 37.3%)
CIE-LAB	lab(35.04, 19.94, -48.14)
CIE-LCH	lch(35.04, 52.11, 292.50°)
OKLab	oklab(44.74% -0.0011 -0.1381)
OKLCH	oklch(44.74% 0.138 269.5)
XYZ	xyz(10.5030, 8.5182, 34.3416)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CA0 #A08B37

analogous

#3781A0 #374CA0 #5737A0

triadic

#374CA0 #A0374C #4CA037

tetradic

#374CA0 #A03781 #A08B37 #37A057

square

#374CA0 #A03781 #A08B37 #37A057

split-complementary

#374CA0 #A05737 #81A037

monochromatic

#182145 #273672 #374CA0 #5168C3 #7F8FD3

Accessibility & contrast

On white

7.77

#374CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#374CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CA0

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CA0	#FFFFFF	#000000	##FFFFFF
##374CA0	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1957A3

Deuteranopia (green-blind)

#004E9E

Tritanopia (blue-blind)

#00606E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #374ca0;
/* rgb */ color: rgb(55, 76, 160);
/* oklch */ color: oklch(44.7% 0.138 269.5);

Tailwind

colors: {
  custom: {
    50: '#797dbd',
    500: '#374ca0',
    950: '#000000',
  },
}

SCSS

$custom: #374ca0;
$custom-light: #797dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#374ca0",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 160
  },
  "hsl": {
    "h": 228,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.44742,
    "c": 0.13811,
    "h": 269.5
  },
  "luminance": 0.08519
}

Semantic roles & 50–950 ramp

primary

#374CA0

secondary

#BCAE77

accent

#BD4FD8

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374CA0

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

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