#374EA6#374EA6

#374EA6 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.6% C 0.144 H 269.0°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#374EA6
RGB	rgb(55, 78, 166)
HSL	hsl(228, 50%, 43%)
HSV	hsv(228, 67%, 65%)
CMYK	cmyk(66.9%, 53%, 0%, 34.9%)
CIE-LAB	lab(36.01, 20.81, -50.17)
CIE-LCH	lch(36.01, 54.31, 292.53°)
OKLab	oklab(45.61% -0.0025 -0.1441)
OKLCH	oklch(45.61% 0.144 269)
XYZ	xyz(11.1805, 9.0131, 37.2195)
Luminance	0.0901 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EA6 #A68F37

analogous

#3785A6 #374EA6 #5837A6

triadic

#374EA6 #A6374E #4EA637

tetradic

#374EA6 #A63785 #A68F37 #37A658

square

#374EA6 #A63785 #A68F37 #37A658

split-complementary

#374EA6 #A65837 #85A637

monochromatic

#19234A #283878 #374EA6 #546CC6 #8293D6

Accessibility & contrast

On white

7.49

#374EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#374EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EA6

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EA6	#FFFFFF	#000000	##FFFFFF
##374EA6	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#165AA9

Deuteranopia (green-blind)

#0050A4

Tritanopia (blue-blind)

#006372

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374ea6;
/* rgb */ color: rgb(55, 78, 166);
/* oklch */ color: oklch(45.6% 0.144 269.0);

Tailwind

colors: {
  custom: {
    50: '#7a7fc1',
    500: '#374ea6',
    950: '#000000',
  },
}

SCSS

$custom: #374ea6;
$custom-light: #7a7fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#374ea6",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 166
  },
  "hsl": {
    "h": 227.568,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45609,
    "c": 0.14408,
    "h": 269
  },
  "luminance": 0.09014
}

Semantic roles & 50–950 ramp

primary

#374EA6

secondary

#BFB17A

accent

#BD4EDA

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #374EA6

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

Preview Lab → · Contrast checker → · Palette generator →