#374FA6#374FA6

#374FA6 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.8% C 0.143 H 268.6°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#374FA6
RGB	rgb(55, 79, 166)
HSL	hsl(227, 50%, 43%)
HSV	hsv(227, 67%, 65%)
CMYK	cmyk(66.9%, 52.4%, 0%, 34.9%)
CIE-LAB	lab(36.28, 20.15, -49.73)
CIE-LCH	lch(36.28, 53.65, 292.06°)
OKLab	oklab(45.82% -0.0035 -0.1427)
OKLCH	oklch(45.82% 0.143 268.6)
XYZ	xyz(11.2521, 9.1563, 37.2434)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FA6 #A68E37

analogous

#3786A6 #374FA6 #5637A6

triadic

#374FA6 #A6374F #4FA637

tetradic

#374FA6 #A63786 #A68E37 #37A656

square

#374FA6 #A63786 #A68E37 #37A656

split-complementary

#374FA6 #A65637 #86A637

monochromatic

#19234A #283978 #374FA6 #546DC6 #8294D6

Accessibility & contrast

On white

7.42

#374FA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#374FA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374FA6

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FA6	#FFFFFF	#000000	##FFFFFF
##374FA6	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#195BA9

Deuteranopia (green-blind)

#0051A4

Tritanopia (blue-blind)

#006373

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374fa6;
/* rgb */ color: rgb(55, 79, 166);
/* oklch */ color: oklch(45.8% 0.143 268.6);

Tailwind

colors: {
  custom: {
    50: '#7a7fc1',
    500: '#374fa6',
    950: '#000000',
  },
}

SCSS

$custom: #374fa6;
$custom-light: #7a7fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#374fa6",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 166
  },
  "hsl": {
    "h": 227.027,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45817,
    "c": 0.14278,
    "h": 268.6
  },
  "luminance": 0.09157
}

Semantic roles & 50–950 ramp

primary

#374FA6

secondary

#BFB07A

accent

#BC4EDA

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #374FA6

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

Preview Lab → · Contrast checker → · Palette generator →