#677BC9#677BC9

#677BC9 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.2% C 0.121 H 271.5°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#677BC9
RGB	rgb(103, 123, 201)
HSL	hsl(228, 48%, 60%)
HSV	hsv(228, 49%, 79%)
CMYK	cmyk(48.8%, 38.8%, 0%, 21.2%)
CIE-LAB	lab(53.24, 14.11, -42.87)
CIE-LCH	lch(53.24, 45.13, 288.22°)
OKLab	oklab(60.2% 0.0031 -0.1211)
OKLCH	oklch(60.2% 0.121 271.5)
XYZ	xyz(23.2157, 21.2651, 58.1283)
Luminance	0.2127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677BC9 #C9B567

analogous

#67ACC9 #677BC9 #8467C9

triadic

#677BC9 #C9677B #7BC967

tetradic

#677BC9 #C967AC #C9B567 #67C984

square

#677BC9 #C967AC #C9B567 #67C984

split-complementary

#677BC9 #C98467 #ACC967

monochromatic

#304186 #4057B3 #677BC9 #94A2D9 #C1C9E9

Accessibility & contrast

On white

4.00

#677BC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#677BC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677BC9

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677BC9	#FFFFFF	#000000	##000000
##677BC9	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D84CC

Deuteranopia (green-blind)

#537BC7

Tritanopia (blue-blind)

#408B98

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #677bc9;
/* rgb */ color: rgb(103, 123, 201);
/* oklch */ color: oklch(60.2% 0.121 271.5);

Tailwind

colors: {
  custom: {
    50: '#98a0da',
    500: '#677bc9',
    950: '#000000',
  },
}

SCSS

$custom: #677bc9;
$custom-light: #98a0da;
$custom-dark: #000000;

JSON

{
  "hex": "#677bc9",
  "rgb": {
    "r": 103,
    "g": 123,
    "b": 201
  },
  "hsl": {
    "h": 227.755,
    "s": 47.573,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60198,
    "c": 0.12116,
    "h": 271.5
  },
  "luminance": 0.21267
}

Semantic roles & 50–950 ramp

primary

#677BC9

secondary

#D9D1B3

accent

#BC51D7

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #677BC9

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

Preview Lab → · Contrast checker → · Palette generator →