#375AA5#375AA5

#375AA5 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.1% C 0.127 H 263.5°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#375AA5
RGB	rgb(55, 90, 165)
HSL	hsl(221, 50%, 43%)
HSV	hsv(221, 67%, 65%)
CMYK	cmyk(66.7%, 45.5%, 0%, 35.3%)
CIE-LAB	lab(39.31, 12.57, -44.27)
CIE-LCH	lch(39.31, 46.02, 285.86°)
OKLab	oklab(48.1% -0.0143 -0.1265)
OKLCH	oklch(48.1% 0.127 263.5)
XYZ	xyz(12.0209, 10.8400, 37.0488)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375AA5 #A58237

analogous

#3791A5 #375AA5 #4B37A5

triadic

#375AA5 #A5375A #5AA537

tetradic

#375AA5 #A53791 #A58237 #37A54B

square

#375AA5 #A53791 #A58237 #37A54B

split-complementary

#375AA5 #A54B37 #91A537

monochromatic

#182849 #284177 #375AA5 #5378C6 #819CD5

Accessibility & contrast

On white

6.63

#375AA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#375AA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375AA5

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375AA5	#FFFFFF	#000000	##FFFFFF
##375AA5	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3662A8

Deuteranopia (green-blind)

#2258A3

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #375aa5;
/* rgb */ color: rgb(55, 90, 165);
/* oklch */ color: oklch(48.1% 0.127 263.5);

Tailwind

colors: {
  custom: {
    50: '#7a88c0',
    500: '#375aa5',
    950: '#000000',
  },
}

SCSS

$custom: #375aa5;
$custom-light: #7a88c0;
$custom-dark: #000000;

JSON

{
  "hex": "#375aa5",
  "rgb": {
    "r": 55,
    "g": 90,
    "b": 165
  },
  "hsl": {
    "h": 220.909,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48103,
    "c": 0.12732,
    "h": 263.5
  },
  "luminance": 0.10841
}

Semantic roles & 50–950 ramp

primary

#375AA5

secondary

#BFA979

accent

#AD4EDA

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375AA5

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

Preview Lab → · Contrast checker → · Palette generator →