#677B99#677B99

#677B99 is a mid, muted blue. Relative luminance 0.193; OKLCH L 57.8% C 0.052 H 258.3°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#677B99
RGB	rgb(103, 123, 153)
HSL	hsl(216, 20%, 50%)
HSV	hsv(216, 33%, 60%)
CMYK	cmyk(32.7%, 19.6%, 0%, 40%)
CIE-LAB	lab(51.09, 0.18, -18.52)
CIE-LCH	lch(51.09, 18.52, 270.55°)
OKLab	oklab(57.83% -0.0105 -0.051)
OKLCH	oklch(57.83% 0.052 258.3)
XYZ	xyz(18.4245, 19.3486, 32.8947)
Luminance	0.1935 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677B99 #998567

analogous

#679499 #677B99 #6C6799

triadic

#677B99 #99677B #7B9967

tetradic

#677B99 #996794 #998567 #67996C

square

#677B99 #996794 #998567 #67996C

split-complementary

#677B99 #996C67 #949967

monochromatic

#364050 #4E5E75 #677B99 #8C9BB2 #B0BBCA

Accessibility & contrast

On white

4.31

#677B99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#677B99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677B99

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677B99	#FFFFFF	#000000	##000000
##677B99	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#717C9A

Deuteranopia (green-blind)

#6B7898

Tritanopia (blue-blind)

#588185

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #677b99;
/* rgb */ color: rgb(103, 123, 153);
/* oklch */ color: oklch(57.8% 0.052 258.3);

Tailwind

colors: {
  custom: {
    50: '#93a1b7',
    500: '#677b99',
    950: '#000000',
  },
}

SCSS

$custom: #677b99;
$custom-light: #93a1b7;
$custom-dark: #000000;

JSON

{
  "hex": "#677b99",
  "rgb": {
    "r": 103,
    "g": 123,
    "b": 153
  },
  "hsl": {
    "h": 216,
    "s": 19.685,
    "l": 50.196
  },
  "oklch": {
    "l": 0.57826,
    "c": 0.05209,
    "h": 258.3
  },
  "luminance": 0.19349
}

Semantic roles & 50–950 ramp

primary

#677B99

secondary

#B9B0A3

accent

#9C6CBC

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0E11

muted

#7E7E80

Preview Lab

Preview with #677B99

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

Preview Lab → · Contrast checker → · Palette generator →