#677CD3#677CD3

#677CD3 is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.0% C 0.134 H 271.7°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#677CD3
RGB	rgb(103, 124, 211)
HSL	hsl(228, 55%, 62%)
HSV	hsv(228, 51%, 83%)
CMYK	cmyk(51.2%, 41.2%, 0%, 17.3%)
CIE-LAB	lab(54.03, 16.61, -47.29)
CIE-LCH	lch(54.03, 50.12, 289.35°)
OKLab	oklab(60.97% 0.0039 -0.134)
OKLCH	oklch(60.97% 0.134 271.7)
XYZ	xyz(24.5553, 22.0004, 64.5680)
Luminance	0.2200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677CD3 #D3BE67

analogous

#67B2D3 #677CD3 #8867D3

triadic

#677CD3 #D3677C #7CD367

tetradic

#677CD3 #D367B2 #D3BE67 #67D388

square

#677CD3 #D367B2 #D3BE67 #67D388

split-complementary

#677CD3 #D38867 #B2D367

monochromatic

#2B4095 #3954C4 #677CD3 #96A5E1 #C6CEEE

Accessibility & contrast

On white

3.89

#677CD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#677CD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677CD3

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677CD3	#FFFFFF	#000000	##000000
##677CD3	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5986D6

Deuteranopia (green-blind)

#4D7DD1

Tritanopia (blue-blind)

#378F9D

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #677cd3;
/* rgb */ color: rgb(103, 124, 211);
/* oklch */ color: oklch(61.0% 0.134 271.7);

Tailwind

colors: {
  custom: {
    50: '#99a1e1',
    500: '#677cd3',
    950: '#000000',
  },
}

SCSS

$custom: #677cd3;
$custom-light: #99a1e1;
$custom-dark: #000000;

JSON

{
  "hex": "#677cd3",
  "rgb": {
    "r": 103,
    "g": 124,
    "b": 211
  },
  "hsl": {
    "h": 228.333,
    "s": 55.102,
    "l": 61.569
  },
  "oklch": {
    "l": 0.60974,
    "c": 0.1341,
    "h": 271.7
  },
  "luminance": 0.22002
}

Semantic roles & 50–950 ramp

primary

#677CD3

secondary

#DFD7B7

accent

#A423C3

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #677CD3

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

Preview Lab → · Contrast checker → · Palette generator →