#374BB0#374BB0

#374BB0 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.8% C 0.162 H 270.3°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#374BB0
RGB	rgb(55, 75, 176)
HSL	hsl(230, 52%, 45%)
HSV	hsv(230, 69%, 69%)
CMYK	cmyk(68.8%, 57.4%, 0%, 31%)
CIE-LAB	lab(35.94, 26.43, -56.23)
CIE-LCH	lch(35.94, 62.13, 295.17°)
OKLab	oklab(45.79% 0.0007 -0.1619)
OKLCH	oklch(45.79% 0.162 270.3)
XYZ	xyz(11.9254, 8.9778, 42.1703)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374BB0 #B09C37

analogous

#3787B0 #374BB0 #6037B0

triadic

#374BB0 #B0374B #4BB037

tetradic

#374BB0 #B03787 #B09C37 #37B060

square

#374BB0 #B03787 #B09C37 #37B060

split-complementary

#374BB0 #B06037 #87B037

monochromatic

#1A2353 #283781 #374BB0 #596CCB #8895DA

Accessibility & contrast

On white

7.51

#374BB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#374BB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374BB0

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374BB0	#FFFFFF	#000000	##FFFFFF
##374BB0	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)

#005AB3

Deuteranopia (green-blind)

#004FAE

Tritanopia (blue-blind)

#006476

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #374bb0;
/* rgb */ color: rgb(55, 75, 176);
/* oklch */ color: oklch(45.8% 0.162 270.3);

Tailwind

colors: {
  custom: {
    50: '#7d7dc8',
    500: '#374bb0',
    950: '#000000',
  },
}

SCSS

$custom: #374bb0;
$custom-light: #7d7dc8;
$custom-dark: #000000;

JSON

{
  "hex": "#374bb0",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 176
  },
  "hsl": {
    "h": 230.083,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.45791,
    "c": 0.16193,
    "h": 270.3
  },
  "luminance": 0.08979
}

Semantic roles & 50–950 ramp

primary

#374BB0

secondary

#C4B87F

accent

#C44CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #374BB0

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

Preview Lab → · Contrast checker → · Palette generator →