#374FA1#374FA1

#374FA1 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.4% C 0.136 H 268.3°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#374FA1
RGB	rgb(55, 79, 161)
HSL	hsl(226, 49%, 42%)
HSV	hsv(226, 66%, 63%)
CMYK	cmyk(65.8%, 50.9%, 0%, 36.9%)
CIE-LAB	lab(35.94, 18.32, -47.29)
CIE-LCH	lch(35.94, 50.71, 291.18°)
OKLab	oklab(45.45% -0.004 -0.1356)
OKLCH	oklch(45.45% 0.136 268.3)
XYZ	xyz(10.8024, 8.9764, 34.8746)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FA1 #A18937

analogous

#3784A1 #374FA1 #5437A1

triadic

#374FA1 #A1374F #4FA137

tetradic

#374FA1 #A13784 #A18937 #37A154

square

#374FA1 #A13784 #A18937 #37A154

split-complementary

#374FA1 #A15437 #84A137

monochromatic

#182246 #273973 #374FA1 #516BC4 #7F92D3

Accessibility & contrast

On white

7.51

#374FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#374FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374FA1

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FA1	#FFFFFF	#000000	##FFFFFF
##374FA1	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215AA4

Deuteranopia (green-blind)

#00509F

Tritanopia (blue-blind)

#006270

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374fa1;
/* rgb */ color: rgb(55, 79, 161);
/* oklch */ color: oklch(45.4% 0.136 268.3);

Tailwind

colors: {
  custom: {
    50: '#797fbd',
    500: '#374fa1',
    950: '#000000',
  },
}

SCSS

$custom: #374fa1;
$custom-light: #797fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#374fa1",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 161
  },
  "hsl": {
    "h": 226.415,
    "s": 49.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.45445,
    "c": 0.13563,
    "h": 268.3
  },
  "luminance": 0.08977
}

Semantic roles & 50–950 ramp

primary

#374FA1

secondary

#BDAD77

accent

#BA4FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #374FA1

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

Preview Lab → · Contrast checker → · Palette generator →