#375CBB#375CBB

#375CBB is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.1% C 0.156 H 265.2°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#375CBB
RGB	rgb(55, 92, 187)
HSL	hsl(223, 55%, 47%)
HSV	hsv(223, 71%, 73%)
CMYK	cmyk(70.6%, 50.8%, 0%, 26.7%)
CIE-LAB	lab(41.30, 19.38, -54.03)
CIE-LCH	lch(41.30, 57.39, 289.73°)
OKLab	oklab(50.08% -0.0131 -0.1552)
OKLCH	oklch(50.08% 0.156 265.2)
XYZ	xyz(14.3692, 12.0529, 48.5732)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375CBB #BB9637

analogous

#379EBB #375CBB #5437BB

triadic

#375CBB #BB375C #5CBB37

tetradic

#375CBB #BB379E #BB9637 #37BB54

square

#375CBB #BB379E #BB9637 #37BB54

split-complementary

#375CBB #BB5437 #9EBB37

monochromatic

#1B2D5C #29458C #375CBB #5F7FD0 #8EA5DE

Accessibility & contrast

On white

6.16

#375CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#375CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375CBB

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375CBB	#FFFFFF	#000000	##FFFFFF
##375CBB	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2368BE

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #375cbb;
/* rgb */ color: rgb(55, 92, 187);
/* oklch */ color: oklch(50.1% 0.156 265.2);

Tailwind

colors: {
  custom: {
    50: '#7e89d0',
    500: '#375cbb',
    950: '#000000',
  },
}

SCSS

$custom: #375cbb;
$custom-light: #7e89d0;
$custom-dark: #000000;

JSON

{
  "hex": "#375cbb",
  "rgb": {
    "r": 55,
    "g": 92,
    "b": 187
  },
  "hsl": {
    "h": 223.182,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.50083,
    "c": 0.15574,
    "h": 265.2
  },
  "luminance": 0.12054
}

Semantic roles & 50–950 ramp

primary

#375CBB

secondary

#C9B685

accent

#B44ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #375CBB

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

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