#374FA5#374FA5

#374FA5 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.7% C 0.141 H 268.6°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#374FA5
RGB	rgb(55, 79, 165)
HSL	hsl(227, 50%, 43%)
HSV	hsv(227, 67%, 65%)
CMYK	cmyk(66.7%, 52.1%, 0%, 35.3%)
CIE-LAB	lab(36.21, 19.78, -49.24)
CIE-LCH	lch(36.21, 53.07, 291.89°)
OKLab	oklab(45.74% -0.0036 -0.1413)
OKLCH	oklch(45.74% 0.141 268.6)
XYZ	xyz(11.1607, 9.1198, 36.7621)
Luminance	0.0912 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FA5 #A58D37

analogous

#3786A5 #374FA5 #5637A5

triadic

#374FA5 #A5374F #4FA537

tetradic

#374FA5 #A53786 #A58D37 #37A556

square

#374FA5 #A53786 #A58D37 #37A556

split-complementary

#374FA5 #A55637 #86A537

monochromatic

#182349 #283977 #374FA5 #536CC6 #8194D5

Accessibility & contrast

On white

7.44

#374FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#374FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374FA5

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FA5	#FFFFFF	#000000	##FFFFFF
##374FA5	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B5AA8

Deuteranopia (green-blind)

#0050A3

Tritanopia (blue-blind)

#006372

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374fa5;
/* rgb */ color: rgb(55, 79, 165);
/* oklch */ color: oklch(45.7% 0.141 268.6);

Tailwind

colors: {
  custom: {
    50: '#7a7fc0',
    500: '#374fa5',
    950: '#000000',
  },
}

SCSS

$custom: #374fa5;
$custom-light: #7a7fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#374fa5",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 165
  },
  "hsl": {
    "h": 226.909,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.45742,
    "c": 0.14136,
    "h": 268.6
  },
  "luminance": 0.09121
}

Semantic roles & 50–950 ramp

primary

#374FA5

secondary

#BFAF79

accent

#BB4EDA

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #374FA5

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

Preview Lab → · Contrast checker → · Palette generator →