#375EBB#375EBB

#375EBB is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.5% C 0.153 H 264.4°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#375EBB
RGB	rgb(55, 94, 187)
HSL	hsl(222, 55%, 47%)
HSV	hsv(222, 71%, 73%)
CMYK	cmyk(70.6%, 49.7%, 0%, 26.7%)
CIE-LAB	lab(41.85, 18.08, -53.14)
CIE-LCH	lch(41.85, 56.13, 288.79°)
OKLab	oklab(50.5% -0.0148 -0.1525)
OKLCH	oklch(50.5% 0.153 264.4)
XYZ	xyz(14.5447, 12.4040, 48.6318)
Luminance	0.1240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375EBB #BB9437

analogous

#37A0BB #375EBB #5237BB

triadic

#375EBB #BB375E #5EBB37

tetradic

#375EBB #BB37A0 #BB9437 #37BB52

square

#375EBB #BB37A0 #BB9437 #37BB52

split-complementary

#375EBB #BB5237 #A0BB37

monochromatic

#1B2E5C #29468C #375EBB #5F81D0 #8EA6DE

Accessibility & contrast

On white

6.03

#375EBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#375EBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375EBB

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375EBB	#FFFFFF	#000000	##FFFFFF
##375EBB	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2969BE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#007483

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #375ebb;
/* rgb */ color: rgb(55, 94, 187);
/* oklch */ color: oklch(50.5% 0.153 264.4);

Tailwind

colors: {
  custom: {
    50: '#7e8bd0',
    500: '#375ebb',
    950: '#000000',
  },
}

SCSS

$custom: #375ebb;
$custom-light: #7e8bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#375ebb",
  "rgb": {
    "r": 55,
    "g": 94,
    "b": 187
  },
  "hsl": {
    "h": 222.273,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.50503,
    "c": 0.15326,
    "h": 264.4
  },
  "luminance": 0.12405
}

Semantic roles & 50–950 ramp

primary

#375EBB

secondary

#C9B585

accent

#B24ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #375EBB

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

Preview Lab → · Contrast checker → · Palette generator →