#6378A3#6378A3

#6378A3 is a mid, moderate blue. Relative luminance 0.187; OKLCH L 57.3% C 0.071 H 264.2°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#6378A3
RGB	rgb(99, 120, 163)
HSL	hsl(220, 26%, 51%)
HSV	hsv(220, 39%, 64%)
CMYK	cmyk(39.3%, 26.4%, 0%, 36.1%)
CIE-LAB	lab(50.37, 3.54, -25.49)
CIE-LCH	lch(50.37, 25.74, 277.91°)
OKLab	oklab(57.32% -0.0072 -0.0709)
OKLCH	oklch(57.32% 0.071 264.2)
XYZ	xyz(18.4709, 18.7290, 37.2850)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6378A3 #A38E63

analogous

#6398A3 #6378A3 #6E63A3

triadic

#6378A3 #A36378 #78A363

tetradic

#6378A3 #A36398 #A38E63 #63A36E

square

#6378A3 #A36398 #A38E63 #63A36E

split-complementary

#6378A3 #A36E63 #98A363

monochromatic

#344058 #4A5B7E #6378A3 #8999BA #B0BBD0

Accessibility & contrast

On white

4.42

#6378A3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#6378A3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6378A3

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6378A3	#FFFFFF	#000000	##000000
##6378A3	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697BA5

Deuteranopia (green-blind)

#6375A2

Tritanopia (blue-blind)

#4E8187

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #6378a3;
/* rgb */ color: rgb(99, 120, 163);
/* oklch */ color: oklch(57.3% 0.071 264.2);

Tailwind

colors: {
  custom: {
    50: '#929ebe',
    500: '#6378a3',
    950: '#000000',
  },
}

SCSS

$custom: #6378a3;
$custom-light: #929ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#6378a3",
  "rgb": {
    "r": 99,
    "g": 120,
    "b": 163
  },
  "hsl": {
    "h": 220.313,
    "s": 25.806,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57323,
    "c": 0.07127,
    "h": 264.2
  },
  "luminance": 0.1873
}

Semantic roles & 50–950 ramp

primary

#6378A3

secondary

#BFB6A3

accent

#A466C2

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0E12

muted

#7E7E81

Preview Lab

Preview with #6378A3

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

Preview Lab → · Contrast checker → · Palette generator →