#677FDA#677FDA

#677FDA is a mid, vivid blue. Relative luminance 0.231; OKLCH L 62.0% C 0.140 H 270.7°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#677FDA
RGB	rgb(103, 127, 218)
HSL	hsl(227, 61%, 63%)
HSV	hsv(227, 53%, 85%)
CMYK	cmyk(52.8%, 41.7%, 0%, 14.5%)
CIE-LAB	lab(55.20, 16.99, -49.38)
CIE-LCH	lch(55.20, 52.22, 288.99°)
OKLab	oklab(61.99% 0.0018 -0.1401)
OKLCH	oklch(61.99% 0.14 270.7)
XYZ	xyz(25.8337, 23.1225, 69.4179)
Luminance	0.2312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677FDA #DAC267

analogous

#67B9DA #677FDA #8867DA

triadic

#677FDA #DA677F #7FDA67

tetradic

#677FDA #DA67B9 #DAC267 #67DA88

square

#677FDA #DA67B9 #DAC267 #67DA88

split-complementary

#677FDA #DA8867 #B9DA67

monochromatic

#2740A0 #3656CE #677FDA #98A8E6 #C9D2F2

Accessibility & contrast

On white

3.73

#677FDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#677FDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677FDA

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677FDA	#FFFFFF	#000000	##000000
##677FDA	1.00	3.73	5.62	5.62
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5989DE

Deuteranopia (green-blind)

#4C7FD8

Tritanopia (blue-blind)

#2F93A2

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #677fda;
/* rgb */ color: rgb(103, 127, 218);
/* oklch */ color: oklch(62.0% 0.140 270.7);

Tailwind

colors: {
  custom: {
    50: '#9aa3e6',
    500: '#677fda',
    950: '#000000',
  },
}

SCSS

$custom: #677fda;
$custom-light: #9aa3e6;
$custom-dark: #000000;

JSON

{
  "hex": "#677fda",
  "rgb": {
    "r": 103,
    "g": 127,
    "b": 218
  },
  "hsl": {
    "h": 227.478,
    "s": 60.847,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61994,
    "c": 0.14014,
    "h": 270.7
  },
  "luminance": 0.23124
}

Semantic roles & 50–950 ramp

primary

#677FDA

secondary

#E3DABA

accent

#A51DC9

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0F0F16

muted

#7E7F84

Preview Lab

Preview with #677FDA

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

Preview Lab → · Contrast checker → · Palette generator →