#375E9B#375E9B

#375E9B is a mid, moderate blue. Relative luminance 0.112; OKLCH L 48.4% C 0.108 H 259.0°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#375E9B
RGB	rgb(55, 94, 155)
HSL	hsl(217, 48%, 41%)
HSV	hsv(217, 65%, 61%)
CMYK	cmyk(64.5%, 39.4%, 0%, 39.2%)
CIE-LAB	lab(39.89, 6.35, -37.38)
CIE-LCH	lch(39.89, 37.92, 279.64°)
OKLab	oklab(48.36% -0.0206 -0.1062)
OKLCH	oklch(48.36% 0.108 259)
XYZ	xyz(11.4925, 11.1831, 32.5569)
Luminance	0.1118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375E9B #9B7437

analogous

#37909B #375E9B #42379B

triadic

#375E9B #9B375E #5E9B37

tetradic

#375E9B #9B3790 #9B7437 #379B42

square

#375E9B #9B3790 #9B7437 #379B42

split-complementary

#375E9B #9B4237 #909B37

monochromatic

#172741 #27436E #375E9B #4F7BC0 #7C9DD0

Accessibility & contrast

On white

6.49

#375E9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#375E9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375E9B

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375E9B	#FFFFFF	#000000	##FFFFFF
##375E9B	1.00	6.49	3.24	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43639D

Deuteranopia (green-blind)

#355A9A

Tritanopia (blue-blind)

#006C75

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #375e9b;
/* rgb */ color: rgb(55, 94, 155);
/* oklch */ color: oklch(48.4% 0.108 259.0);

Tailwind

colors: {
  custom: {
    50: '#788bb9',
    500: '#375e9b',
    950: '#000000',
  },
}

SCSS

$custom: #375e9b;
$custom-light: #788bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#375e9b",
  "rgb": {
    "r": 55,
    "g": 94,
    "b": 155
  },
  "hsl": {
    "h": 216.6,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.48358,
    "c": 0.10823,
    "h": 259
  },
  "luminance": 0.11184
}

Semantic roles & 50–950 ramp

primary

#375E9B

secondary

#BA9F74

accent

#A351D7

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #375E9B

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

Preview Lab → · Contrast checker → · Palette generator →