#374EA7#374EA7

#374EA7 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.7% C 0.145 H 269.0°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#374EA7
RGB	rgb(55, 78, 167)
HSL	hsl(228, 50%, 44%)
HSV	hsv(228, 67%, 65%)
CMYK	cmyk(67.1%, 53.3%, 0%, 34.5%)
CIE-LAB	lab(36.08, 21.17, -50.65)
CIE-LCH	lch(36.08, 54.90, 292.69°)
OKLab	oklab(45.68% -0.0024 -0.1455)
OKLCH	oklch(45.68% 0.146 269)
XYZ	xyz(11.2726, 9.0500, 37.7045)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374EA7 #A79037

analogous

#3786A7 #374EA7 #5837A7

triadic

#374EA7 #A7374E #4EA737

tetradic

#374EA7 #A73786 #A79037 #37A758

square

#374EA7 #A73786 #A79037 #37A758

split-complementary

#374EA7 #A75837 #86A737

monochromatic

#19234B #283879 #374EA7 #546CC7 #8294D6

Accessibility & contrast

On white

7.47

#374EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#374EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374EA7

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374EA7	#FFFFFF	#000000	##FFFFFF
##374EA7	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#145AAA

Deuteranopia (green-blind)

#0050A5

Tritanopia (blue-blind)

#006373

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374ea7;
/* rgb */ color: rgb(55, 78, 167);
/* oklch */ color: oklch(45.7% 0.145 269.0);

Tailwind

colors: {
  custom: {
    50: '#7b7fc2',
    500: '#374ea7',
    950: '#000000',
  },
}

SCSS

$custom: #374ea7;
$custom-light: #7b7fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#374ea7",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 167
  },
  "hsl": {
    "h": 227.679,
    "s": 50.45,
    "l": 43.529
  },
  "oklch": {
    "l": 0.45685,
    "c": 0.1455,
    "h": 269
  },
  "luminance": 0.09051
}

Semantic roles & 50–950 ramp

primary

#374EA7

secondary

#C0B17A

accent

#BD4EDA

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #374EA7

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

Preview Lab → · Contrast checker → · Palette generator →